19867816

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{67121}}^1$

素因数の和:67164

約数の個数: 16

約数和(自身を含む): 38259540

約数和(自身を除く): 18391724

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 67121, 134242, 268484, 536968, 2483477, 4966954, 9933908, 19867816]

約数ペア:

[(1, 19867816), (2, 9933908), (4, 4966954), (8, 2483477), (37, 536968), (74, 268484), (148, 134242), (296, 67121)]