216471605

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1523}}^1$

素因数の和:1697

約数の個数: 32

約数和(自身を含む): 308994048

約数和(自身を除く): 92522443

約数列:

[1, 5, 7, 31, 35, 131, 155, 217, 655, 917, 1085, 1523, 4061, 4585, 7615, 10661, 20305, 28427, 47213, 53305, 142135, 199513, 236065, 330491, 997565, 1396591, 1652455, 6184903, 6982955, 30924515, 43294321, 216471605]

約数ペア:

[(1, 216471605), (5, 43294321), (7, 30924515), (31, 6982955), (35, 6184903), (131, 1652455), (155, 1396591), (217, 997565), (655, 330491), (917, 236065), (1085, 199513), (1523, 142135), (4061, 53305), (4585, 47213), (7615, 28427), (10661, 20305)]