990663886079

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{1783}}^1\times {\mathrm{17881}}^1$

素因数の和:19887

約数の個数: 32

約数和(自身を含む): 1188266625024

約数和(自身を除く): 197602738945

約数列:

[1, 7, 23, 161, 193, 1351, 1783, 4439, 12481, 17881, 31073, 41009, 125167, 287063, 344119, 411263, 2408833, 2878841, 3451033, 7914737, 24157231, 31881823, 55403159, 79373759, 223172761, 555616313, 733281929, 5132973503, 6153191839, 43072342873, 141523412297, 990663886079]

約数ペア:

[(1, 990663886079), (7, 141523412297), (23, 43072342873), (161, 6153191839), (193, 5132973503), (1351, 733281929), (1783, 555616313), (4439, 223172761), (12481, 79373759), (17881, 55403159), (31073, 31881823), (41009, 24157231), (125167, 7914737), (287063, 3451033), (344119, 2878841), (411263, 2408833)]