21872.00000000

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7789}}^1$

素因数の和:7825

約数の個数: 48

約数和(自身を含む): 43748640

約数和(自身を除く): 27625410

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 690, 1035, 2070, 7789, 15578, 23367, 38945, 46734, 70101, 77890, 116835, 140202, 179147, 233670, 350505, 358294, 537441, 701010, 895735, 1074882, 1612323, 1791470, 2687205, 3224646, 5374410, 8061615, 16123230]

約数ペア:

[(1, 16123230), (2, 8061615), (3, 5374410), (5, 3224646), (6, 2687205), (9, 1791470), (10, 1612323), (15, 1074882), (18, 895735), (23, 701010), (30, 537441), (45, 358294), (46, 350505), (69, 233670), (90, 179147), (115, 140202), (138, 116835), (207, 77890), (230, 70101), (345, 46734), (414, 38945), (690, 23367), (1035, 15578), (2070, 7789)]