21510200

素因数分解:

$2^3\times 5^2\times {\mathrm{131}}^1\times {\mathrm{821}}^1$

素因数の和:968

約数の個数: 48

約数和(自身を含む): 50454360

約数和(自身を除く): 28944160

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 131, 200, 262, 524, 655, 821, 1048, 1310, 1642, 2620, 3275, 3284, 4105, 5240, 6550, 6568, 8210, 13100, 16420, 20525, 26200, 32840, 41050, 82100, 107551, 164200, 215102, 430204, 537755, 860408, 1075510, 2151020, 2688775, 4302040, 5377550, 10755100, 21510200]

約数ペア:

[(1, 21510200), (2, 10755100), (4, 5377550), (5, 4302040), (8, 2688775), (10, 2151020), (20, 1075510), (25, 860408), (40, 537755), (50, 430204), (100, 215102), (131, 164200), (200, 107551), (262, 82100), (524, 41050), (655, 32840), (821, 26200), (1048, 20525), (1310, 16420), (1642, 13100), (2620, 8210), (3275, 6568), (3284, 6550), (4105, 5240)]