21153225

素因数分解:

$3^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{2153}}^1$

素因数の和:2297

約数の個数: 24

約数和(自身を含む): 35256672

約数和(自身を除く): 14103447

約数列:

[1, 3, 5, 15, 25, 75, 131, 393, 655, 1965, 2153, 3275, 6459, 9825, 10765, 32295, 53825, 161475, 282043, 846129, 1410215, 4230645, 7051075, 21153225]

約数ペア:

[(1, 21153225), (3, 7051075), (5, 4230645), (15, 1410215), (25, 846129), (75, 282043), (131, 161475), (393, 53825), (655, 32295), (1965, 10765), (2153, 9825), (3275, 6459)]