19801292

素因数分解:

$2^2\times 7^2\times {\mathrm{101027}}^1$

素因数の和:101045

約数の個数: 18

約数和(自身を含む): 40310172

約数和(自身を除く): 20508880

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 101027, 202054, 404108, 707189, 1414378, 2828756, 4950323, 9900646, 19801292]

約数ペア:

[(1, 19801292), (2, 9900646), (4, 4950323), (7, 2828756), (14, 1414378), (28, 707189), (49, 404108), (98, 202054), (196, 101027)]