21696878

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{23131}}^1$

素因数の和:23207

約数の個数: 16

約数和(自身を含む): 37751424

約数和(自身を除く): 16054546

約数列:

[1, 2, 7, 14, 67, 134, 469, 938, 23131, 46262, 161917, 323834, 1549777, 3099554, 10848439, 21696878]

約数ペア:

[(1, 21696878), (2, 10848439), (7, 3099554), (14, 1549777), (67, 323834), (134, 161917), (469, 46262), (938, 23131)]