20399786

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:350

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 14194774

約数列:

[1, 2, 11, 22, 47, 94, 109, 181, 218, 362, 517, 1034, 1199, 1991, 2398, 3982, 5123, 8507, 10246, 17014, 19729, 39458, 56353, 93577, 112706, 187154, 217019, 434038, 927263, 1854526, 10199893, 20399786]

約数ペア:

[(1, 20399786), (2, 10199893), (11, 1854526), (22, 927263), (47, 434038), (94, 217019), (109, 187154), (181, 112706), (218, 93577), (362, 56353), (517, 39458), (1034, 19729), (1199, 17014), (1991, 10246), (2398, 8507), (3982, 5123)]