21305124

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13763}}^1$

素因数の和:13816

約数の個数: 36

約数和(自身を含む): 55111056

約数和(自身を除く): 33805932

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13763, 27526, 41289, 55052, 82578, 123867, 165156, 247734, 495468, 591809, 1183618, 1775427, 2367236, 3550854, 5326281, 7101708, 10652562, 21305124]

約数ペア:

[(1, 21305124), (2, 10652562), (3, 7101708), (4, 5326281), (6, 3550854), (9, 2367236), (12, 1775427), (18, 1183618), (36, 591809), (43, 495468), (86, 247734), (129, 165156), (172, 123867), (258, 82578), (387, 55052), (516, 41289), (774, 27526), (1548, 13763)]