21465129

素因数分解:

$3^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{2549}}^1$

素因数の和:2960

約数の個数: 16

約数和(自身を含む): 32803200

約数和(自身を除く): 11338071

約数列:

[1, 3, 7, 21, 401, 1203, 2549, 2807, 7647, 8421, 17843, 53529, 1022149, 3066447, 7155043, 21465129]

約数ペア:

[(1, 21465129), (3, 7155043), (7, 3066447), (21, 1022149), (401, 53529), (1203, 17843), (2549, 8421), (2807, 7647)]