20944472

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{257}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 40309920

約数和(自身を除く): 19365448

約数列:

[1, 2, 4, 8, 61, 122, 167, 244, 257, 334, 488, 514, 668, 1028, 1336, 2056, 10187, 15677, 20374, 31354, 40748, 42919, 62708, 81496, 85838, 125416, 171676, 343352, 2618059, 5236118, 10472236, 20944472]

約数ペア:

[(1, 20944472), (2, 10472236), (4, 5236118), (8, 2618059), (61, 343352), (122, 171676), (167, 125416), (244, 85838), (257, 81496), (334, 62708), (488, 42919), (514, 40748), (668, 31354), (1028, 20374), (1336, 15677), (2056, 10187)]