21046830

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:162

約数の個数: 128

約数和(自身を含む): 61710336

約数和(自身を除く): 40663506

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 53, 61, 62, 70, 93, 105, 106, 122, 155, 159, 183, 186, 210, 217, 265, 305, 310, 318, 366, 371, 427, 434, 465, 530, 610, 651, 742, 795, 854, 915, 930, 1085, 1113, 1281, 1302, 1590, 1643, 1830, 1855, 1891, 2135, 2170, 2226, 2562, 3233, 3255, 3286, 3710, 3782, 4270, 4929, 5565, 5673, 6405, 6466, 6510, 8215, 9455, 9699, 9858, 11130, 11346, 11501, 12810, 13237, 16165, 16430, 18910, 19398, 22631, 23002, 24645, 26474, 28365, 32330, 34503, 39711, 45262, 48495, 49290, 56730, 57505, 66185, 67893, 69006, 79422, 96990, 100223, 113155, 115010, 132370, 135786, 172515, 198555, 200446, 226310, 300669, 339465, 345030, 397110, 501115, 601338, 678930, 701561, 1002230, 1403122, 1503345, 2104683, 3006690, 3507805, 4209366, 7015610, 10523415, 21046830]

約数ペア:

[(1, 21046830), (2, 10523415), (3, 7015610), (5, 4209366), (6, 3507805), (7, 3006690), (10, 2104683), (14, 1503345), (15, 1403122), (21, 1002230), (30, 701561), (31, 678930), (35, 601338), (42, 501115), (53, 397110), (61, 345030), (62, 339465), (70, 300669), (93, 226310), (105, 200446), (106, 198555), (122, 172515), (155, 135786), (159, 132370), (183, 115010), (186, 113155), (210, 100223), (217, 96990), (265, 79422), (305, 69006), (310, 67893), (318, 66185), (366, 57505), (371, 56730), (427, 49290), (434, 48495), (465, 45262), (530, 39711), (610, 34503), (651, 32330), (742, 28365), (795, 26474), (854, 24645), (915, 23002), (930, 22631), (1085, 19398), (1113, 18910), (1281, 16430), (1302, 16165), (1590, 13237), (1643, 12810), (1830, 11501), (1855, 11346), (1891, 11130), (2135, 9858), (2170, 9699), (2226, 9455), (2562, 8215), (3233, 6510), (3255, 6466), (3286, 6405), (3710, 5673), (3782, 5565), (4270, 4929)]