21613768

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{3109}}^1$

素因数の和:3205

約数の個数: 32

約数和(自身を含む): 44784000

約数和(自身を除く): 23170232

約数列:

[1, 2, 4, 8, 11, 22, 44, 79, 88, 158, 316, 632, 869, 1738, 3109, 3476, 6218, 6952, 12436, 24872, 34199, 68398, 136796, 245611, 273592, 491222, 982444, 1964888, 2701721, 5403442, 10806884, 21613768]

約数ペア:

[(1, 21613768), (2, 10806884), (4, 5403442), (8, 2701721), (11, 1964888), (22, 982444), (44, 491222), (79, 273592), (88, 245611), (158, 136796), (316, 68398), (632, 34199), (869, 24872), (1738, 12436), (3109, 6952), (3476, 6218)]