21025107

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1049}}^1$

素因数の和:1203

約数の個数: 24

約数和(自身を含む): 32432400

約数和(自身を除く): 11407293

約数列:

[1, 3, 9, 17, 51, 131, 153, 393, 1049, 1179, 2227, 3147, 6681, 9441, 17833, 20043, 53499, 137419, 160497, 412257, 1236771, 2336123, 7008369, 21025107]

約数ペア:

[(1, 21025107), (3, 7008369), (9, 2336123), (17, 1236771), (51, 412257), (131, 160497), (153, 137419), (393, 53499), (1049, 20043), (1179, 17833), (2227, 9441), (3147, 6681)]