21779745

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1831}}^1$

素因数の和:1913

約数の個数: 32

約数和(自身を含む): 38164224

約数和(自身を除く): 16384479

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 183, 195, 305, 793, 915, 1831, 2379, 3965, 5493, 9155, 11895, 23803, 27465, 71409, 111691, 119015, 335073, 357045, 558455, 1451983, 1675365, 4355949, 7259915, 21779745]

約数ペア:

[(1, 21779745), (3, 7259915), (5, 4355949), (13, 1675365), (15, 1451983), (39, 558455), (61, 357045), (65, 335073), (183, 119015), (195, 111691), (305, 71409), (793, 27465), (915, 23803), (1831, 11895), (2379, 9155), (3965, 5493)]