21680270

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1747}}^1$

素因数の和:1844

約数の個数: 32

約数和(自身を含む): 41910048

約数和(自身を除く): 20229778

約数列:

[1, 2, 5, 10, 17, 34, 73, 85, 146, 170, 365, 730, 1241, 1747, 2482, 3494, 6205, 8735, 12410, 17470, 29699, 59398, 127531, 148495, 255062, 296990, 637655, 1275310, 2168027, 4336054, 10840135, 21680270]

約数ペア:

[(1, 21680270), (2, 10840135), (5, 4336054), (10, 2168027), (17, 1275310), (34, 637655), (73, 296990), (85, 255062), (146, 148495), (170, 127531), (365, 59398), (730, 29699), (1241, 17470), (1747, 12410), (2482, 8735), (3494, 6205)]