18972447

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1627}}^1$

素因数の和:1679

約数の個数: 24

約数和(自身を含む): 28600704

約数和(自身を除く): 9628257

約数列:

[1, 3, 13, 23, 39, 69, 169, 299, 507, 897, 1627, 3887, 4881, 11661, 21151, 37421, 63453, 112263, 274963, 486473, 824889, 1459419, 6324149, 18972447]

約数ペア:

[(1, 18972447), (3, 6324149), (13, 1459419), (23, 824889), (39, 486473), (69, 274963), (169, 112263), (299, 63453), (507, 37421), (897, 21151), (1627, 11661), (3887, 4881)]