19454140

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1867}}^1$

素因数の和:2397

約数の個数: 24

約数和(自身を含む): 40954032

約数和(自身を除く): 21499892

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 1867, 2084, 2605, 3734, 5210, 7468, 9335, 10420, 18670, 37340, 972707, 1945414, 3890828, 4863535, 9727070, 19454140]

約数ペア:

[(1, 19454140), (2, 9727070), (4, 4863535), (5, 3890828), (10, 1945414), (20, 972707), (521, 37340), (1042, 18670), (1867, 10420), (2084, 9335), (2605, 7468), (3734, 5210)]