225645

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{307}}^1$

素因数の和:329

約数の個数: 24

約数和(自身を含む): 421344

約数和(自身を除く): 195699

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 307, 735, 921, 1535, 2149, 4605, 6447, 10745, 15043, 32235, 45129, 75215, 225645]

約数ペア:

[(1, 225645), (3, 75215), (5, 45129), (7, 32235), (15, 15043), (21, 10745), (35, 6447), (49, 4605), (105, 2149), (147, 1535), (245, 921), (307, 735)]