21205064

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2287}}^1$

素因数の和:2373

約数の個数: 32

約数和(自身を含む): 42556800

約数和(自身を除く): 21351736

約数列:

[1, 2, 4, 8, 19, 38, 61, 76, 122, 152, 244, 488, 1159, 2287, 2318, 4574, 4636, 9148, 9272, 18296, 43453, 86906, 139507, 173812, 279014, 347624, 558028, 1116056, 2650633, 5301266, 10602532, 21205064]

約数ペア:

[(1, 21205064), (2, 10602532), (4, 5301266), (8, 2650633), (19, 1116056), (38, 558028), (61, 347624), (76, 279014), (122, 173812), (152, 139507), (244, 86906), (488, 43453), (1159, 18296), (2287, 9272), (2318, 9148), (4574, 4636)]