21478246

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{1453}}^1$

素因数の和:1863

約数の個数: 16

約数和(自身を含む): 34023600

約数和(自身を除く): 12545354

約数列:

[1, 2, 19, 38, 389, 778, 1453, 2906, 7391, 14782, 27607, 55214, 565217, 1130434, 10739123, 21478246]

約数ペア:

[(1, 21478246), (2, 10739123), (19, 1130434), (38, 565217), (389, 55214), (778, 27607), (1453, 14782), (2906, 7391)]