18700979116

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{641411}}^1$

素因数の和:641649

約数の個数: 24

約数和(自身を含む): 33781887216

約数和(自身を除く): 15080908100

約数列:

[1, 2, 4, 37, 74, 148, 197, 394, 788, 7289, 14578, 29156, 641411, 1282822, 2565644, 23732207, 47464414, 94928828, 126357967, 252715934, 505431868, 4675244779, 9350489558, 18700979116]

約数ペア:

[(1, 18700979116), (2, 9350489558), (4, 4675244779), (37, 505431868), (74, 252715934), (148, 126357967), (197, 94928828), (394, 47464414), (788, 23732207), (7289, 2565644), (14578, 1282822), (29156, 641411)]