21156564

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{12329}}^1$

素因数の和:12360

約数の個数: 48

約数和(自身を含む): 58000320

約数和(自身を除く): 36843756

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 132, 143, 156, 286, 429, 572, 858, 1716, 12329, 24658, 36987, 49316, 73974, 135619, 147948, 160277, 271238, 320554, 406857, 480831, 542476, 641108, 813714, 961662, 1627428, 1763047, 1923324, 3526094, 5289141, 7052188, 10578282, 21156564]

約数ペア:

[(1, 21156564), (2, 10578282), (3, 7052188), (4, 5289141), (6, 3526094), (11, 1923324), (12, 1763047), (13, 1627428), (22, 961662), (26, 813714), (33, 641108), (39, 542476), (44, 480831), (52, 406857), (66, 320554), (78, 271238), (132, 160277), (143, 147948), (156, 135619), (286, 73974), (429, 49316), (572, 36987), (858, 24658), (1716, 12329)]