21302001

素因数分解:

$3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2749}}^1$

素因数の和:2806

約数の個数: 32

約数和(自身を含む): 36960000

約数和(自身を除く): 15657999

約数列:

[1, 3, 7, 9, 21, 27, 41, 63, 123, 189, 287, 369, 861, 1107, 2583, 2749, 7749, 8247, 19243, 24741, 57729, 74223, 112709, 173187, 338127, 519561, 788963, 1014381, 2366889, 3043143, 7100667, 21302001]

約数ペア:

[(1, 21302001), (3, 7100667), (7, 3043143), (9, 2366889), (21, 1014381), (27, 788963), (41, 519561), (63, 338127), (123, 173187), (189, 112709), (287, 74223), (369, 57729), (861, 24741), (1107, 19243), (2583, 8247), (2749, 7749)]