21187998

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{90547}}^1$

素因数の和:90568

約数の個数: 24

約数和(自身を含む): 49439208

約数和(自身を除く): 28251210

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 90547, 181094, 271641, 543282, 814923, 1177111, 1629846, 2354222, 3531333, 7062666, 10593999, 21187998]

約数ペア:

[(1, 21187998), (2, 10593999), (3, 7062666), (6, 3531333), (9, 2354222), (13, 1629846), (18, 1177111), (26, 814923), (39, 543282), (78, 271641), (117, 181094), (234, 90547)]