20918316

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3989}}^1$

素因数の和:4038

約数の個数: 48

約数和(自身を含む): 53625600

約数和(自身を除く): 32707284

約数列:

[1, 2, 3, 4, 6, 12, 19, 23, 38, 46, 57, 69, 76, 92, 114, 138, 228, 276, 437, 874, 1311, 1748, 2622, 3989, 5244, 7978, 11967, 15956, 23934, 47868, 75791, 91747, 151582, 183494, 227373, 275241, 303164, 366988, 454746, 550482, 909492, 1100964, 1743193, 3486386, 5229579, 6972772, 10459158, 20918316]

約数ペア:

[(1, 20918316), (2, 10459158), (3, 6972772), (4, 5229579), (6, 3486386), (12, 1743193), (19, 1100964), (23, 909492), (38, 550482), (46, 454746), (57, 366988), (69, 303164), (76, 275241), (92, 227373), (114, 183494), (138, 151582), (228, 91747), (276, 75791), (437, 47868), (874, 23934), (1311, 15956), (1748, 11967), (2622, 7978), (3989, 5244)]