21130578

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{55901}}^1$

素因数の和:55919

約数の個数: 32

約数和(自身を含む): 53665920

約数和(自身を除く): 32535342

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 55901, 111802, 167703, 335406, 391307, 503109, 782614, 1006218, 1173921, 1509327, 2347842, 3018654, 3521763, 7043526, 10565289, 21130578]

約数ペア:

[(1, 21130578), (2, 10565289), (3, 7043526), (6, 3521763), (7, 3018654), (9, 2347842), (14, 1509327), (18, 1173921), (21, 1006218), (27, 782614), (42, 503109), (54, 391307), (63, 335406), (126, 167703), (189, 111802), (378, 55901)]