257918219853

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2797}}^1\times {\mathrm{93427}}^1$

素因数の和:96281

約数の個数: 32

約数和(自身を含む): 401528131584

約数和(自身を除く): 143609911731

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 2797, 8391, 19579, 58737, 93427, 131459, 280281, 394377, 653989, 920213, 1961967, 2760639, 4391069, 13173207, 30737483, 92212449, 261315319, 783945957, 1829207233, 5487621699, 12281819993, 36845459979, 85972739951, 257918219853]

約数ペア:

[(1, 257918219853), (3, 85972739951), (7, 36845459979), (21, 12281819993), (47, 5487621699), (141, 1829207233), (329, 783945957), (987, 261315319), (2797, 92212449), (8391, 30737483), (19579, 13173207), (58737, 4391069), (93427, 2760639), (131459, 1961967), (280281, 920213), (394377, 653989)]