21902545

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 32161536

約数和(自身を除く): 10258991

約数列:

[1, 5, 7, 17, 35, 85, 119, 131, 281, 595, 655, 917, 1405, 1967, 2227, 4585, 4777, 9835, 11135, 15589, 23885, 33439, 36811, 77945, 167195, 184055, 257677, 625787, 1288385, 3128935, 4380509, 21902545]

約数ペア:

[(1, 21902545), (5, 4380509), (7, 3128935), (17, 1288385), (35, 625787), (85, 257677), (119, 184055), (131, 167195), (281, 77945), (595, 36811), (655, 33439), (917, 23885), (1405, 15589), (1967, 11135), (2227, 9835), (4585, 4777)]