18181965

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1$

素因数の和:741

約数の個数: 32

約数和(自身を含む): 30569472

約数和(自身を除く): 12387507

約数列:

[1, 3, 5, 15, 31, 61, 93, 155, 183, 305, 465, 641, 915, 1891, 1923, 3205, 5673, 9455, 9615, 19871, 28365, 39101, 59613, 99355, 117303, 195505, 298065, 586515, 1212131, 3636393, 6060655, 18181965]

約数ペア:

[(1, 18181965), (3, 6060655), (5, 3636393), (15, 1212131), (31, 586515), (61, 298065), (93, 195505), (155, 117303), (183, 99355), (305, 59613), (465, 39101), (641, 28365), (915, 19871), (1891, 9615), (1923, 9455), (3205, 5673)]