21653723

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1597}}^1$

素因数の和:1766

約数の個数: 16

約数和(自身を含む): 26846400

約数和(自身を除く): 5192677

約数列:

[1, 7, 13, 91, 149, 1043, 1597, 1937, 11179, 13559, 20761, 145327, 237953, 1665671, 3093389, 21653723]

約数ペア:

[(1, 21653723), (7, 3093389), (13, 1665671), (91, 237953), (149, 145327), (1043, 20761), (1597, 13559), (1937, 11179)]