21145772

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{1097}}^1$

素因数の和:1241

約数の個数: 24

約数和(自身を含む): 38122560

約数和(自身を除く): 16976788

約数列:

[1, 2, 4, 61, 79, 122, 158, 244, 316, 1097, 2194, 4388, 4819, 9638, 19276, 66917, 86663, 133834, 173326, 267668, 346652, 5286443, 10572886, 21145772]

約数ペア:

[(1, 21145772), (2, 10572886), (4, 5286443), (61, 346652), (79, 267668), (122, 173326), (158, 133834), (244, 86663), (316, 66917), (1097, 19276), (2194, 9638), (4388, 4819)]