20973615

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1823}}^1$

素因数の和:1903

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 15798225

約数列:

[1, 3, 5, 13, 15, 39, 59, 65, 177, 195, 295, 767, 885, 1823, 2301, 3835, 5469, 9115, 11505, 23699, 27345, 71097, 107557, 118495, 322671, 355485, 537785, 1398241, 1613355, 4194723, 6991205, 20973615]

約数ペア:

[(1, 20973615), (3, 6991205), (5, 4194723), (13, 1613355), (15, 1398241), (39, 537785), (59, 355485), (65, 322671), (177, 118495), (195, 107557), (295, 71097), (767, 27345), (885, 23699), (1823, 11505), (2301, 9115), (3835, 5469)]