31380741

素因数分解:

$3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{3343}}^1$

素因数の和:3505

約数の個数: 24

約数和(自身を含む): 52166400

約数和(自身を除く): 20785659

約数列:

[1, 3, 7, 9, 21, 63, 149, 447, 1043, 1341, 3129, 3343, 9387, 10029, 23401, 30087, 70203, 210609, 498107, 1494321, 3486749, 4482963, 10460247, 31380741]

約数ペア:

[(1, 31380741), (3, 10460247), (7, 4482963), (9, 3486749), (21, 1494321), (63, 498107), (149, 210609), (447, 70203), (1043, 30087), (1341, 23401), (3129, 10029), (3343, 9387)]