21231416

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:519

約数の個数: 32

約数和(自身を含む): 40882800

約数和(自身を除く): 19651384

約数列:

[1, 2, 4, 8, 61, 122, 139, 244, 278, 313, 488, 556, 626, 1112, 1252, 2504, 8479, 16958, 19093, 33916, 38186, 43507, 67832, 76372, 87014, 152744, 174028, 348056, 2653927, 5307854, 10615708, 21231416]

約数ペア:

[(1, 21231416), (2, 10615708), (4, 5307854), (8, 2653927), (61, 348056), (122, 174028), (139, 152744), (244, 87014), (278, 76372), (313, 67832), (488, 43507), (556, 38186), (626, 33916), (1112, 19093), (1252, 16958), (2504, 8479)]