21672969

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 31739904

約数和(自身を除く): 10066935

約数列:

[1, 3, 23, 41, 47, 69, 123, 141, 163, 489, 943, 1081, 1927, 2829, 3243, 3749, 5781, 6683, 7661, 11247, 20049, 22983, 44321, 132963, 153709, 176203, 314101, 461127, 528609, 942303, 7224323, 21672969]

約数ペア:

[(1, 21672969), (3, 7224323), (23, 942303), (41, 528609), (47, 461127), (69, 314101), (123, 176203), (141, 153709), (163, 132963), (489, 44321), (943, 22983), (1081, 20049), (1927, 11247), (2829, 7661), (3243, 6683), (3749, 5781)]