21406672

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11243}}^1$

素因数の和:11275

約数の個数: 40

約数和(自身を含む): 50193216

約数和(自身を除く): 28786544

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 11243, 22486, 44972, 78701, 89944, 157402, 179888, 191131, 314804, 382262, 629608, 764524, 1259216, 1337917, 1529048, 2675834, 3058096, 5351668, 10703336, 21406672]

約数ペア:

[(1, 21406672), (2, 10703336), (4, 5351668), (7, 3058096), (8, 2675834), (14, 1529048), (16, 1337917), (17, 1259216), (28, 764524), (34, 629608), (56, 382262), (68, 314804), (112, 191131), (119, 179888), (136, 157402), (238, 89944), (272, 78701), (476, 44972), (952, 22486), (1904, 11243)]