20761448

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{821}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 40689000

約数和(自身を除く): 19927552

約数列:

[1, 2, 4, 8, 29, 58, 109, 116, 218, 232, 436, 821, 872, 1642, 3161, 3284, 6322, 6568, 12644, 23809, 25288, 47618, 89489, 95236, 178978, 190472, 357956, 715912, 2595181, 5190362, 10380724, 20761448]

約数ペア:

[(1, 20761448), (2, 10380724), (4, 5190362), (8, 2595181), (29, 715912), (58, 357956), (109, 190472), (116, 178978), (218, 95236), (232, 89489), (436, 47618), (821, 25288), (872, 23809), (1642, 12644), (3161, 6568), (3284, 6322)]