20411013

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 32369920

約数和(自身を除く): 11958907

約数列:

[1, 3, 7, 21, 37, 109, 111, 241, 259, 327, 723, 763, 777, 1687, 2289, 4033, 5061, 8917, 12099, 26269, 26751, 28231, 62419, 78807, 84693, 183883, 187257, 551649, 971953, 2915859, 6803671, 20411013]

約数ペア:

[(1, 20411013), (3, 6803671), (7, 2915859), (21, 971953), (37, 551649), (109, 187257), (111, 183883), (241, 84693), (259, 78807), (327, 62419), (723, 28231), (763, 26751), (777, 26269), (1687, 12099), (2289, 8917), (4033, 5061)]