25190011

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:283

約数の個数: 32

約数和(自身を含む): 33140736

約数和(自身を除く): 7950725

約数列:

[1, 7, 11, 31, 61, 77, 173, 217, 341, 427, 671, 1211, 1891, 1903, 2387, 4697, 5363, 10553, 13237, 13321, 20801, 37541, 58993, 73871, 116083, 145607, 327143, 412951, 812581, 2290001, 3598573, 25190011]

約数ペア:

[(1, 25190011), (7, 3598573), (11, 2290001), (31, 812581), (61, 412951), (77, 327143), (173, 145607), (217, 116083), (341, 73871), (427, 58993), (671, 37541), (1211, 20801), (1891, 13321), (1903, 13237), (2387, 10553), (4697, 5363)]