20745524079

素因数分解:

$3^2\times 7^1\times {\mathrm{307}}^1\times {\mathrm{827}}^1\times {\mathrm{1297}}^1$

素因数の和:2444

約数の個数: 48

約数和(自身を含む): 34426199808

約数和(自身を除く): 13680675729

約数列:

[1, 3, 7, 9, 21, 63, 307, 827, 921, 1297, 2149, 2481, 2763, 3891, 5789, 6447, 7443, 9079, 11673, 17367, 19341, 27237, 52101, 81711, 253889, 398179, 761667, 1072619, 1194537, 1777223, 2285001, 2787253, 3217857, 3583611, 5331669, 7508333, 8361759, 9653571, 15995007, 22524999, 25085277, 67574997, 329294033, 987882099, 2305058231, 2963646297, 6915174693, 20745524079]

約数ペア:

[(1, 20745524079), (3, 6915174693), (7, 2963646297), (9, 2305058231), (21, 987882099), (63, 329294033), (307, 67574997), (827, 25085277), (921, 22524999), (1297, 15995007), (2149, 9653571), (2481, 8361759), (2763, 7508333), (3891, 5331669), (5789, 3583611), (6447, 3217857), (7443, 2787253), (9079, 2285001), (11673, 1777223), (17367, 1194537), (19341, 1072619), (27237, 761667), (52101, 398179), (81711, 253889)]