21758919

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{6131}}^1$

素因数の和:6167

約数の個数: 24

約数和(自身を含む): 35908992

約数和(自身を除く): 14150073

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 6131, 18393, 42917, 79703, 128751, 239109, 557921, 1036139, 1673763, 3108417, 7252973, 21758919]

約数ペア:

[(1, 21758919), (3, 7252973), (7, 3108417), (13, 1673763), (21, 1036139), (39, 557921), (91, 239109), (169, 128751), (273, 79703), (507, 42917), (1183, 18393), (3549, 6131)]