20691426

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{70379}}^1$

素因数の和:70398

約数の個数: 24

約数和(自身を含む): 48139920

約数和(自身を除く): 27448494

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 70379, 140758, 211137, 422274, 492653, 985306, 1477959, 2955918, 3448571, 6897142, 10345713, 20691426]

約数ペア:

[(1, 20691426), (2, 10345713), (3, 6897142), (6, 3448571), (7, 2955918), (14, 1477959), (21, 985306), (42, 492653), (49, 422274), (98, 211137), (147, 140758), (294, 70379)]