21720174

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{587}}^1\times {\mathrm{881}}^1$

素因数の和:1480

約数の個数: 32

約数和(自身を含む): 49787136

約数和(自身を除く): 28066962

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 587, 881, 1174, 1761, 1762, 2643, 3522, 4109, 5286, 6167, 8218, 12327, 12334, 18501, 24654, 37002, 517147, 1034294, 1551441, 3102882, 3620029, 7240058, 10860087, 21720174]

約数ペア:

[(1, 21720174), (2, 10860087), (3, 7240058), (6, 3620029), (7, 3102882), (14, 1551441), (21, 1034294), (42, 517147), (587, 37002), (881, 24654), (1174, 18501), (1761, 12334), (1762, 12327), (2643, 8218), (3522, 6167), (4109, 5286)]