21979236

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{13177}}^1$

素因数の和:13323

約数の個数: 24

約数和(自身を含む): 51657760

約数和(自身を除く): 29678524

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668, 13177, 26354, 39531, 52708, 79062, 158124, 1831603, 3663206, 5494809, 7326412, 10989618, 21979236]

約数ペア:

[(1, 21979236), (2, 10989618), (3, 7326412), (4, 5494809), (6, 3663206), (12, 1831603), (139, 158124), (278, 79062), (417, 52708), (556, 39531), (834, 26354), (1668, 13177)]