21139960570

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{329951}}^1$

素因数の和:330150

約数の個数: 32

約数和(自身を含む): 39198297600

約数和(自身を除く): 18058337030

約数列:

[1, 2, 5, 10, 43, 86, 149, 215, 298, 430, 745, 1490, 6407, 12814, 32035, 64070, 329951, 659902, 1649755, 3299510, 14187893, 28375786, 49162699, 70939465, 98325398, 141878930, 245813495, 491626990, 2113996057, 4227992114, 10569980285, 21139960570]

約数ペア:

[(1, 21139960570), (2, 10569980285), (5, 4227992114), (10, 2113996057), (43, 491626990), (86, 245813495), (149, 141878930), (215, 98325398), (298, 70939465), (430, 49162699), (745, 28375786), (1490, 14187893), (6407, 3299510), (12814, 1649755), (32035, 659902), (64070, 329951)]