21417435

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1181}}^1$

素因数の和:1236

約数の個数: 48

約数和(自身を含む): 41303808

約数和(自身を除く): 19886373

約数列:

[1, 3, 5, 9, 13, 15, 31, 39, 45, 65, 93, 117, 155, 195, 279, 403, 465, 585, 1181, 1209, 1395, 2015, 3543, 3627, 5905, 6045, 10629, 15353, 17715, 18135, 36611, 46059, 53145, 76765, 109833, 138177, 183055, 230295, 329499, 475943, 549165, 690885, 1427829, 1647495, 2379715, 4283487, 7139145, 21417435]

約数ペア:

[(1, 21417435), (3, 7139145), (5, 4283487), (9, 2379715), (13, 1647495), (15, 1427829), (31, 690885), (39, 549165), (45, 475943), (65, 329499), (93, 230295), (117, 183055), (155, 138177), (195, 109833), (279, 76765), (403, 53145), (465, 46059), (585, 36611), (1181, 18135), (1209, 17715), (1395, 15353), (2015, 10629), (3543, 6045), (3627, 5905)]