21235515

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{202243}}^1$

素因数の和:202258

約数の個数: 16

約数和(自身を含む): 38830848

約数和(自身を除く): 17595333

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 202243, 606729, 1011215, 1415701, 3033645, 4247103, 7078505, 21235515]

約数ペア:

[(1, 21235515), (3, 7078505), (5, 4247103), (7, 3033645), (15, 1415701), (21, 1011215), (35, 606729), (105, 202243)]