21541845

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1811}}^1$

素因数の和:1893

約数の個数: 32

約数和(自身を含む): 37747584

約数和(自身を除く): 16205739

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 183, 195, 305, 793, 915, 1811, 2379, 3965, 5433, 9055, 11895, 23543, 27165, 70629, 110471, 117715, 331413, 353145, 552355, 1436123, 1657065, 4308369, 7180615, 21541845]

約数ペア:

[(1, 21541845), (3, 7180615), (5, 4308369), (13, 1657065), (15, 1436123), (39, 552355), (61, 353145), (65, 331413), (183, 117715), (195, 110471), (305, 70629), (793, 27165), (915, 23543), (1811, 11895), (2379, 9055), (3965, 5433)]