20678643

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{541}}^1$

素因数の和:715

約数の個数: 24

約数和(自身を含む): 31115136

約数和(自身を除く): 10436493

約数列:

[1, 3, 9, 31, 93, 137, 279, 411, 541, 1233, 1623, 4247, 4869, 12741, 16771, 38223, 50313, 74117, 150939, 222351, 667053, 2297627, 6892881, 20678643]

約数ペア:

[(1, 20678643), (3, 6892881), (9, 2297627), (31, 667053), (93, 222351), (137, 150939), (279, 74117), (411, 50313), (541, 38223), (1233, 16771), (1623, 12741), (4247, 4869)]