21969268

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{1879}}^1$

素因数の和:1999

約数の個数: 24

約数和(自身を含む): 40006400

約数和(自身を除く): 18037132

約数列:

[1, 2, 4, 37, 74, 79, 148, 158, 316, 1879, 2923, 3758, 5846, 7516, 11692, 69523, 139046, 148441, 278092, 296882, 593764, 5492317, 10984634, 21969268]

約数ペア:

[(1, 21969268), (2, 10984634), (4, 5492317), (37, 593764), (74, 296882), (79, 278092), (148, 148441), (158, 139046), (316, 69523), (1879, 11692), (2923, 7516), (3758, 5846)]