21498035

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 29417472

約数和(自身を除く): 7919437

約数列:

[1, 5, 13, 31, 47, 65, 155, 227, 235, 403, 611, 1135, 1457, 2015, 2951, 3055, 7037, 7285, 10669, 14755, 18941, 35185, 53345, 91481, 94705, 138697, 330739, 457405, 693485, 1653695, 4299607, 21498035]

約数ペア:

[(1, 21498035), (5, 4299607), (13, 1653695), (31, 693485), (47, 457405), (65, 330739), (155, 138697), (227, 94705), (235, 91481), (403, 53345), (611, 35185), (1135, 18941), (1457, 14755), (2015, 10669), (2951, 7285), (3055, 7037)]