20921520298

素因数分解:

$2^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{575431}}^1$

素因数の和:575507

約数の個数: 32

約数和(自身を含む): 37287993600

約数和(自身を除く): 16366473302

約数列:

[1, 2, 7, 14, 49, 53, 98, 106, 343, 371, 686, 742, 2597, 5194, 18179, 36358, 575431, 1150862, 4028017, 8056034, 28196119, 30497843, 56392238, 60995686, 197372833, 213484901, 394745666, 426969802, 1494394307, 2988788614, 10460760149, 20921520298]

約数ペア:

[(1, 20921520298), (2, 10460760149), (7, 2988788614), (14, 1494394307), (49, 426969802), (53, 394745666), (98, 213484901), (106, 197372833), (343, 60995686), (371, 56392238), (686, 30497843), (742, 28196119), (2597, 8056034), (5194, 4028017), (18179, 1150862), (36358, 575431)]