21258420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{354307}}^1$

素因数の和:354319

約数の個数: 24

約数和(自身を含む): 59523744

約数和(自身を除く): 38265324

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 354307, 708614, 1062921, 1417228, 1771535, 2125842, 3543070, 4251684, 5314605, 7086140, 10629210, 21258420]

約数ペア:

[(1, 21258420), (2, 10629210), (3, 7086140), (4, 5314605), (5, 4251684), (6, 3543070), (10, 2125842), (12, 1771535), (15, 1417228), (20, 1062921), (30, 708614), (60, 354307)]