18729928

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{5483}}^1$

素因数の和:5557

約数の個数: 32

約数和(自身を含む): 40800960

約数和(自身を除く): 22071032

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 5483, 10966, 21932, 38381, 43864, 76762, 153524, 307048, 334463, 668926, 1337852, 2341241, 2675704, 4682482, 9364964, 18729928]

約数ペア:

[(1, 18729928), (2, 9364964), (4, 4682482), (7, 2675704), (8, 2341241), (14, 1337852), (28, 668926), (56, 334463), (61, 307048), (122, 153524), (244, 76762), (427, 43864), (488, 38381), (854, 21932), (1708, 10966), (3416, 5483)]