21501179

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3943}}^1$

素因数の和:4010

約数の個数: 16

約数和(自身を含む): 26503680

約数和(自身を除く): 5002501

約数列:

[1, 7, 19, 41, 133, 287, 779, 3943, 5453, 27601, 74917, 161663, 524419, 1131641, 3071597, 21501179]

約数ペア:

[(1, 21501179), (7, 3071597), (19, 1131641), (41, 524419), (133, 161663), (287, 74917), (779, 27601), (3943, 5453)]