21696093

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:239

約数の個数: 40

約数和(自身を含む): 34151040

約数和(自身を除く): 12454947

約数列:

[1, 3, 9, 27, 41, 47, 81, 123, 139, 141, 369, 417, 423, 1107, 1251, 1269, 1927, 3321, 3753, 3807, 5699, 5781, 6533, 11259, 17097, 17343, 19599, 51291, 52029, 58797, 153873, 156087, 176391, 267853, 461619, 529173, 803559, 2410677, 7232031, 21696093]

約数ペア:

[(1, 21696093), (3, 7232031), (9, 2410677), (27, 803559), (41, 529173), (47, 461619), (81, 267853), (123, 176391), (139, 156087), (141, 153873), (369, 58797), (417, 52029), (423, 51291), (1107, 19599), (1251, 17343), (1269, 17097), (1927, 11259), (3321, 6533), (3753, 5781), (3807, 5699)]