20012278

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{419}}^1$

素因数の和:612

約数の個数: 32

約数和(自身を含む): 35562240

約数和(自身を除く): 15549962

約数列:

[1, 2, 11, 13, 22, 26, 143, 167, 286, 334, 419, 838, 1837, 2171, 3674, 4342, 4609, 5447, 9218, 10894, 23881, 47762, 59917, 69973, 119834, 139946, 769703, 909649, 1539406, 1819298, 10006139, 20012278]

約数ペア:

[(1, 20012278), (2, 10006139), (11, 1819298), (13, 1539406), (22, 909649), (26, 769703), (143, 139946), (167, 119834), (286, 69973), (334, 59917), (419, 47762), (838, 23881), (1837, 10894), (2171, 9218), (3674, 5447), (4342, 4609)]