21391692

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{254663}}^1$

素因数の和:254677

約数の個数: 24

約数和(自身を含む): 57044736

約数和(自身を除く): 35653044

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 254663, 509326, 763989, 1018652, 1527978, 1782641, 3055956, 3565282, 5347923, 7130564, 10695846, 21391692]

約数ペア:

[(1, 21391692), (2, 10695846), (3, 7130564), (4, 5347923), (6, 3565282), (7, 3055956), (12, 1782641), (14, 1527978), (21, 1018652), (28, 763989), (42, 509326), (84, 254663)]