21897902

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{13807}}^1$

素因数の和:13883

約数の個数: 16

約数和(自身を含む): 35956032

約数和(自身を除く): 14058130

約数列:

[1, 2, 13, 26, 61, 122, 793, 1586, 13807, 27614, 179491, 358982, 842227, 1684454, 10948951, 21897902]

約数ペア:

[(1, 21897902), (2, 10948951), (13, 1684454), (26, 842227), (61, 358982), (122, 179491), (793, 27614), (1586, 13807)]