20433688

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2609}}^1$

素因数の和:2715

約数の個数: 32

約数和(自身を含む): 42282000

約数和(自身を除く): 21848312

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 89, 178, 356, 712, 979, 1958, 2609, 3916, 5218, 7832, 10436, 20872, 28699, 57398, 114796, 229592, 232201, 464402, 928804, 1857608, 2554211, 5108422, 10216844, 20433688]

約数ペア:

[(1, 20433688), (2, 10216844), (4, 5108422), (8, 2554211), (11, 1857608), (22, 928804), (44, 464402), (88, 232201), (89, 229592), (178, 114796), (356, 57398), (712, 28699), (979, 20872), (1958, 10436), (2609, 7832), (3916, 5218)]