21542678

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{719}}^1$

素因数の和:1003

約数の個数: 16

約数和(自身を含む): 32970240

約数和(自身を除く): 11427562

約数列:

[1, 2, 71, 142, 211, 422, 719, 1438, 14981, 29962, 51049, 102098, 151709, 303418, 10771339, 21542678]

約数ペア:

[(1, 21542678), (2, 10771339), (71, 303418), (142, 151709), (211, 102098), (422, 51049), (719, 29962), (1438, 14981)]