68639781

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{2749}}^1$

素因数の和:2829

約数の個数: 32

約数和(自身を含む): 110880000

約数和(自身を除く): 42240219

約数列:

[1, 3, 7, 21, 29, 41, 87, 123, 203, 287, 609, 861, 1189, 2749, 3567, 8247, 8323, 19243, 24969, 57729, 79721, 112709, 239163, 338127, 558047, 788963, 1674141, 2366889, 3268561, 9805683, 22879927, 68639781]

約数ペア:

[(1, 68639781), (3, 22879927), (7, 9805683), (21, 3268561), (29, 2366889), (41, 1674141), (87, 788963), (123, 558047), (203, 338127), (287, 239163), (609, 112709), (861, 79721), (1189, 57729), (2749, 24969), (3567, 19243), (8247, 8323)]