15820749

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{13217}}^1$

素因数の和:13249

約数の個数: 24

約数和(自身を含む): 27493440

約数和(自身を除く): 11672691

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 13217, 39651, 92519, 118953, 251123, 277557, 753369, 832671, 1757861, 2260107, 5273583, 15820749]

約数ペア:

[(1, 15820749), (3, 5273583), (7, 2260107), (9, 1757861), (19, 832671), (21, 753369), (57, 277557), (63, 251123), (133, 118953), (171, 92519), (399, 39651), (1197, 13217)]