19815128

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{66943}}^1$

素因数の和:66986

約数の個数: 16

約数和(自身を含む): 38158080

約数和(自身を除く): 18342952

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 66943, 133886, 267772, 535544, 2476891, 4953782, 9907564, 19815128]

約数ペア:

[(1, 19815128), (2, 9907564), (4, 4953782), (8, 2476891), (37, 535544), (74, 267772), (148, 133886), (296, 66943)]