21000519352

素因数分解:

$2^3\times {\mathrm{107}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1\times {\mathrm{1091}}^1$

素因数の和:1516

約数の個数: 64

約数和(自身を含む): 40334112000

約数和(自身を除く): 19333592648

約数列:

[1, 2, 4, 8, 107, 113, 199, 214, 226, 398, 428, 452, 796, 856, 904, 1091, 1592, 2182, 4364, 8728, 12091, 21293, 22487, 24182, 42586, 44974, 48364, 85172, 89948, 96728, 116737, 123283, 170344, 179896, 217109, 233474, 246566, 434218, 466948, 493132, 868436, 933896, 986264, 1736872, 2406109, 4812218, 9624436, 13191281, 19248872, 23230663, 24533317, 26382562, 46461326, 49066634, 52765124, 92922652, 98133268, 105530248, 185845304, 196266536, 2625064919, 5250129838, 10500259676, 21000519352]

約数ペア:

[(1, 21000519352), (2, 10500259676), (4, 5250129838), (8, 2625064919), (107, 196266536), (113, 185845304), (199, 105530248), (214, 98133268), (226, 92922652), (398, 52765124), (428, 49066634), (452, 46461326), (796, 26382562), (856, 24533317), (904, 23230663), (1091, 19248872), (1592, 13191281), (2182, 9624436), (4364, 4812218), (8728, 2406109), (12091, 1736872), (21293, 986264), (22487, 933896), (24182, 868436), (42586, 493132), (44974, 466948), (48364, 434218), (85172, 246566), (89948, 233474), (96728, 217109), (116737, 179896), (123283, 170344)]