1640482893

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{839981}}^1$

素因数の和:840025

約数の個数: 24

約数和(自身を含む): 2795460096

約数和(自身を除く): 1154977203

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 839981, 2519943, 5879867, 7559829, 17639601, 26039411, 52918803, 78118233, 182275877, 234354699, 546827631, 1640482893]

約数ペア:

[(1, 1640482893), (3, 546827631), (7, 234354699), (9, 182275877), (21, 78118233), (31, 52918803), (63, 26039411), (93, 17639601), (217, 7559829), (279, 5879867), (651, 2519943), (1953, 839981)]