19670864

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{39659}}^1$

素因数の和:39698

約数の個数: 20

約数和(自身を含む): 39342720

約数和(自身を除く): 19671856

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 39659, 79318, 158636, 317272, 634544, 1229429, 2458858, 4917716, 9835432, 19670864]

約数ペア:

[(1, 19670864), (2, 9835432), (4, 4917716), (8, 2458858), (16, 1229429), (31, 634544), (62, 317272), (124, 158636), (248, 79318), (496, 39659)]