19898710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{153067}}^1$

素因数の和:153087

約数の個数: 16

約数和(自身を含む): 38573136

約数和(自身を除く): 18674426

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 153067, 306134, 765335, 1530670, 1989871, 3979742, 9949355, 19898710]

約数ペア:

[(1, 19898710), (2, 9949355), (5, 3979742), (10, 1989871), (13, 1530670), (26, 765335), (65, 306134), (130, 153067)]