21840644

素因数分解:

$2^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{7723}}^1$

素因数の和:7835

約数の個数: 24

約数和(自身を含む): 44119488

約数和(自身を除く): 22278844

約数列:

[1, 2, 4, 7, 14, 28, 101, 202, 404, 707, 1414, 2828, 7723, 15446, 30892, 54061, 108122, 216244, 780023, 1560046, 3120092, 5460161, 10920322, 21840644]

約数ペア:

[(1, 21840644), (2, 10920322), (4, 5460161), (7, 3120092), (14, 1560046), (28, 780023), (101, 216244), (202, 108122), (404, 54061), (707, 30892), (1414, 15446), (2828, 7723)]