13780285

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{727}}^1$

素因数の和:972

約数の個数: 16

約数和(自身を含む): 17611776

約数和(自身を除く): 3831491

約数列:

[1, 5, 17, 85, 223, 727, 1115, 3635, 3791, 12359, 18955, 61795, 162121, 810605, 2756057, 13780285]

約数ペア:

[(1, 13780285), (5, 2756057), (17, 810605), (85, 162121), (223, 61795), (727, 18955), (1115, 12359), (3635, 3791)]