21814260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27967}}^1$

素因数の和:27992

約数の個数: 48

約数和(自身を含む): 65780736

約数和(自身を除く): 43966476

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 27967, 55934, 83901, 111868, 139835, 167802, 279670, 335604, 363571, 419505, 559340, 727142, 839010, 1090713, 1454284, 1678020, 1817855, 2181426, 3635710, 4362852, 5453565, 7271420, 10907130, 21814260]

約数ペア:

[(1, 21814260), (2, 10907130), (3, 7271420), (4, 5453565), (5, 4362852), (6, 3635710), (10, 2181426), (12, 1817855), (13, 1678020), (15, 1454284), (20, 1090713), (26, 839010), (30, 727142), (39, 559340), (52, 419505), (60, 363571), (65, 335604), (78, 279670), (130, 167802), (156, 139835), (195, 111868), (260, 83901), (390, 55934), (780, 27967)]