21000559473

素因数分解:

$3^3\times {\mathrm{419}}^1\times {\mathrm{571}}^1\times {\mathrm{3251}}^1$

素因数の和:4250

約数の個数: 32

約数和(自身を含む): 31250419200

約数和(自身を除く): 10249859727

約数列:

[1, 3, 9, 27, 419, 571, 1257, 1713, 3251, 3771, 5139, 9753, 11313, 15417, 29259, 87777, 239249, 717747, 1362169, 1856321, 2153241, 4086507, 5568963, 6459723, 12259521, 16706889, 36778563, 50120667, 777798499, 2333395497, 7000186491, 21000559473]

約数ペア:

[(1, 21000559473), (3, 7000186491), (9, 2333395497), (27, 777798499), (419, 50120667), (571, 36778563), (1257, 16706889), (1713, 12259521), (3251, 6459723), (3771, 5568963), (5139, 4086507), (9753, 2153241), (11313, 1856321), (15417, 1362169), (29259, 717747), (87777, 239249)]