21068944

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101293}}^1$

素因数の和:101314

約数の個数: 20

約数和(自身を含む): 43961596

約数和(自身を除く): 22892652

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101293, 202586, 405172, 810344, 1316809, 1620688, 2633618, 5267236, 10534472, 21068944]

約数ペア:

[(1, 21068944), (2, 10534472), (4, 5267236), (8, 2633618), (13, 1620688), (16, 1316809), (26, 810344), (52, 405172), (104, 202586), (208, 101293)]