638897274

素因数分解:

$2^1\times 3^3\times {\mathrm{821}}^1\times {\mathrm{14411}}^1$

素因数の和:15243

約数の個数: 32

約数和(自身を含む): 1421599680

約数和(自身を除く): 782702406

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 821, 1642, 2463, 4926, 7389, 14411, 14778, 22167, 28822, 43233, 44334, 86466, 129699, 259398, 389097, 778194, 11831431, 23662862, 35494293, 70988586, 106482879, 212965758, 319448637, 638897274]

約数ペア:

[(1, 638897274), (2, 319448637), (3, 212965758), (6, 106482879), (9, 70988586), (18, 35494293), (27, 23662862), (54, 11831431), (821, 778194), (1642, 389097), (2463, 259398), (4926, 129699), (7389, 86466), (14411, 44334), (14778, 43233), (22167, 28822)]