18749265

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:761

約数の個数: 32

約数和(自身を含む): 31521792

約数和(自身を除く): 12772527

約数列:

[1, 3, 5, 15, 31, 61, 93, 155, 183, 305, 465, 661, 915, 1891, 1983, 3305, 5673, 9455, 9915, 20491, 28365, 40321, 61473, 102455, 120963, 201605, 307365, 604815, 1249951, 3749853, 6249755, 18749265]

約数ペア:

[(1, 18749265), (3, 6249755), (5, 3749853), (15, 1249951), (31, 604815), (61, 307365), (93, 201605), (155, 120963), (183, 102455), (305, 61473), (465, 40321), (661, 28365), (915, 20491), (1891, 9915), (1983, 9455), (3305, 5673)]