21103469820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{317}}^1\times {\mathrm{2269}}^1$

素因数の和:2764

約数の個数: 144

約数和(自身を含む): 64638231840

約数和(自身を除く): 43534762020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 163, 180, 317, 326, 489, 634, 652, 815, 951, 978, 1268, 1467, 1585, 1630, 1902, 1956, 2269, 2445, 2853, 2934, 3170, 3260, 3804, 4538, 4755, 4890, 5706, 5868, 6340, 6807, 7335, 9076, 9510, 9780, 11345, 11412, 13614, 14265, 14670, 19020, 20421, 22690, 27228, 28530, 29340, 34035, 40842, 45380, 51671, 57060, 68070, 81684, 102105, 103342, 136140, 155013, 204210, 206684, 258355, 310026, 369847, 408420, 465039, 516710, 620052, 719273, 739694, 775065, 930078, 1033420, 1109541, 1438546, 1479388, 1550130, 1849235, 1860156, 2157819, 2219082, 2325195, 2877092, 3100260, 3328623, 3596365, 3698470, 4315638, 4438164, 4650390, 5547705, 6473457, 6657246, 7192730, 7396940, 8631276, 9300780, 10789095, 11095410, 12946914, 13314492, 14385460, 16643115, 21578190, 22190820, 25893828, 32367285, 33286230, 43156380, 64734570, 66572460, 117241499, 129469140, 234482998, 351724497, 468965996, 586207495, 703448994, 1055173491, 1172414990, 1406897988, 1758622485, 2110346982, 2344829980, 3517244970, 4220693964, 5275867455, 7034489940, 10551734910, 21103469820]

約数ペア:

[(1, 21103469820), (2, 10551734910), (3, 7034489940), (4, 5275867455), (5, 4220693964), (6, 3517244970), (9, 2344829980), (10, 2110346982), (12, 1758622485), (15, 1406897988), (18, 1172414990), (20, 1055173491), (30, 703448994), (36, 586207495), (45, 468965996), (60, 351724497), (90, 234482998), (163, 129469140), (180, 117241499), (317, 66572460), (326, 64734570), (489, 43156380), (634, 33286230), (652, 32367285), (815, 25893828), (951, 22190820), (978, 21578190), (1268, 16643115), (1467, 14385460), (1585, 13314492), (1630, 12946914), (1902, 11095410), (1956, 10789095), (2269, 9300780), (2445, 8631276), (2853, 7396940), (2934, 7192730), (3170, 6657246), (3260, 6473457), (3804, 5547705), (4538, 4650390), (4755, 4438164), (4890, 4315638), (5706, 3698470), (5868, 3596365), (6340, 3328623), (6807, 3100260), (7335, 2877092), (9076, 2325195), (9510, 2219082), (9780, 2157819), (11345, 1860156), (11412, 1849235), (13614, 1550130), (14265, 1479388), (14670, 1438546), (19020, 1109541), (20421, 1033420), (22690, 930078), (27228, 775065), (28530, 739694), (29340, 719273), (34035, 620052), (40842, 516710), (45380, 465039), (51671, 408420), (57060, 369847), (68070, 310026), (81684, 258355), (102105, 206684), (103342, 204210), (136140, 155013)]