21417630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54917}}^1$

素因数の和:54940

約数の個数: 32

約数和(自身を含む): 55357344

約数和(自身を除く): 33939714

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 54917, 109834, 164751, 274585, 329502, 549170, 713921, 823755, 1427842, 1647510, 2141763, 3569605, 4283526, 7139210, 10708815, 21417630]

約数ペア:

[(1, 21417630), (2, 10708815), (3, 7139210), (5, 4283526), (6, 3569605), (10, 2141763), (13, 1647510), (15, 1427842), (26, 823755), (30, 713921), (39, 549170), (65, 329502), (78, 274585), (130, 164751), (195, 109834), (390, 54917)]