20973155

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{349}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 30844800

約数和(自身を除く): 9871645

約数列:

[1, 5, 7, 17, 35, 85, 101, 119, 349, 505, 595, 707, 1717, 1745, 2443, 3535, 5933, 8585, 12019, 12215, 29665, 35249, 41531, 60095, 176245, 207655, 246743, 599233, 1233715, 2996165, 4194631, 20973155]

約数ペア:

[(1, 20973155), (5, 4194631), (7, 2996165), (17, 1233715), (35, 599233), (85, 246743), (101, 207655), (119, 176245), (349, 60095), (505, 41531), (595, 35249), (707, 29665), (1717, 12215), (1745, 12019), (2443, 8585), (3535, 5933)]