21046245

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{557}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 36961920

約数和(自身を除く): 15915675

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 229, 557, 687, 1145, 1671, 2519, 2785, 3435, 6127, 7557, 8355, 12595, 18381, 30635, 37785, 91905, 127553, 382659, 637765, 1403083, 1913295, 4209249, 7015415, 21046245]

約数ペア:

[(1, 21046245), (3, 7015415), (5, 4209249), (11, 1913295), (15, 1403083), (33, 637765), (55, 382659), (165, 127553), (229, 91905), (557, 37785), (687, 30635), (1145, 18381), (1671, 12595), (2519, 8355), (2785, 7557), (3435, 6127)]