21356742

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1279}}^1$

素因数の和:1329

約数の個数: 48

約数和(自身を含む): 49029120

約数和(自身を除く): 27672378

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 121, 138, 242, 253, 363, 506, 726, 759, 1279, 1518, 2558, 2783, 3837, 5566, 7674, 8349, 14069, 16698, 28138, 29417, 42207, 58834, 84414, 88251, 154759, 176502, 309518, 323587, 464277, 647174, 928554, 970761, 1941522, 3559457, 7118914, 10678371, 21356742]

約数ペア:

[(1, 21356742), (2, 10678371), (3, 7118914), (6, 3559457), (11, 1941522), (22, 970761), (23, 928554), (33, 647174), (46, 464277), (66, 323587), (69, 309518), (121, 176502), (138, 154759), (242, 88251), (253, 84414), (363, 58834), (506, 42207), (726, 29417), (759, 28138), (1279, 16698), (1518, 14069), (2558, 8349), (2783, 7674), (3837, 5566)]