19724679

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{467}}^1$

素因数の和:524

約数の個数: 36

約数和(自身を含む): 32452056

約数和(自身を除く): 12727377

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 361, 467, 741, 1083, 1401, 2223, 3249, 4203, 4693, 6071, 8873, 14079, 18213, 26619, 42237, 54639, 79857, 115349, 168587, 346047, 505761, 1038141, 1517283, 2191631, 6574893, 19724679]

約数ペア:

[(1, 19724679), (3, 6574893), (9, 2191631), (13, 1517283), (19, 1038141), (39, 505761), (57, 346047), (117, 168587), (171, 115349), (247, 79857), (361, 54639), (467, 42237), (741, 26619), (1083, 18213), (1401, 14079), (2223, 8873), (3249, 6071), (4203, 4693)]