20941688

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3581}}^1$

素因数の和:3647

約数の個数: 32

約数和(自身を含む): 42554160

約数和(自身を除く): 21612472

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 86, 136, 172, 344, 731, 1462, 2924, 3581, 5848, 7162, 14324, 28648, 60877, 121754, 153983, 243508, 307966, 487016, 615932, 1231864, 2617711, 5235422, 10470844, 20941688]

約数ペア:

[(1, 20941688), (2, 10470844), (4, 5235422), (8, 2617711), (17, 1231864), (34, 615932), (43, 487016), (68, 307966), (86, 243508), (136, 153983), (172, 121754), (344, 60877), (731, 28648), (1462, 14324), (2924, 7162), (3581, 5848)]