19688956

素因数分解:

$2^2\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1097}}^1$

素因数の和:1749

約数の個数: 24

約数和(自身を含む): 39475296

約数和(自身を除く): 19786340

約数列:

[1, 2, 4, 7, 14, 28, 641, 1097, 1282, 2194, 2564, 4388, 4487, 7679, 8974, 15358, 17948, 30716, 703177, 1406354, 2812708, 4922239, 9844478, 19688956]

約数ペア:

[(1, 19688956), (2, 9844478), (4, 4922239), (7, 2812708), (14, 1406354), (28, 703177), (641, 30716), (1097, 17948), (1282, 15358), (2194, 8974), (2564, 7679), (4388, 4487)]