20418606

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1229}}^1$

素因数の和:1321

約数の個数: 48

約数和(自身を含む): 48353760

約数和(自身を除く): 27935154

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 71, 78, 117, 142, 213, 234, 426, 639, 923, 1229, 1278, 1846, 2458, 2769, 3687, 5538, 7374, 8307, 11061, 15977, 16614, 22122, 31954, 47931, 87259, 95862, 143793, 174518, 261777, 287586, 523554, 785331, 1134367, 1570662, 2268734, 3403101, 6806202, 10209303, 20418606]

約数ペア:

[(1, 20418606), (2, 10209303), (3, 6806202), (6, 3403101), (9, 2268734), (13, 1570662), (18, 1134367), (26, 785331), (39, 523554), (71, 287586), (78, 261777), (117, 174518), (142, 143793), (213, 95862), (234, 87259), (426, 47931), (639, 31954), (923, 22122), (1229, 16614), (1278, 15977), (1846, 11061), (2458, 8307), (2769, 7374), (3687, 5538)]