21496950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:139

約数の個数: 144

約数和(自身を含む): 63138816

約数和(自身を除く): 41641866

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 25, 30, 31, 45, 46, 50, 62, 67, 69, 75, 90, 93, 115, 134, 138, 150, 155, 186, 201, 207, 225, 230, 279, 310, 335, 345, 402, 414, 450, 465, 558, 575, 603, 670, 690, 713, 775, 930, 1005, 1035, 1150, 1206, 1395, 1426, 1541, 1550, 1675, 1725, 2010, 2070, 2077, 2139, 2325, 2790, 3015, 3082, 3350, 3450, 3565, 4154, 4278, 4623, 4650, 5025, 5175, 6030, 6231, 6417, 6975, 7130, 7705, 9246, 10050, 10350, 10385, 10695, 12462, 12834, 13869, 13950, 15075, 15410, 17825, 18693, 20770, 21390, 23115, 27738, 30150, 31155, 32085, 35650, 37386, 38525, 46230, 47771, 51925, 53475, 62310, 64170, 69345, 77050, 93465, 95542, 103850, 106950, 115575, 138690, 143313, 155775, 160425, 186930, 231150, 238855, 286626, 311550, 320850, 346725, 429939, 467325, 477710, 693450, 716565, 859878, 934650, 1194275, 1433130, 2149695, 2388550, 3582825, 4299390, 7165650, 10748475, 21496950]

約数ペア:

[(1, 21496950), (2, 10748475), (3, 7165650), (5, 4299390), (6, 3582825), (9, 2388550), (10, 2149695), (15, 1433130), (18, 1194275), (23, 934650), (25, 859878), (30, 716565), (31, 693450), (45, 477710), (46, 467325), (50, 429939), (62, 346725), (67, 320850), (69, 311550), (75, 286626), (90, 238855), (93, 231150), (115, 186930), (134, 160425), (138, 155775), (150, 143313), (155, 138690), (186, 115575), (201, 106950), (207, 103850), (225, 95542), (230, 93465), (279, 77050), (310, 69345), (335, 64170), (345, 62310), (402, 53475), (414, 51925), (450, 47771), (465, 46230), (558, 38525), (575, 37386), (603, 35650), (670, 32085), (690, 31155), (713, 30150), (775, 27738), (930, 23115), (1005, 21390), (1035, 20770), (1150, 18693), (1206, 17825), (1395, 15410), (1426, 15075), (1541, 13950), (1550, 13869), (1675, 12834), (1725, 12462), (2010, 10695), (2070, 10385), (2077, 10350), (2139, 10050), (2325, 9246), (2790, 7705), (3015, 7130), (3082, 6975), (3350, 6417), (3450, 6231), (3565, 6030), (4154, 5175), (4278, 5025), (4623, 4650)]