128656479

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{1847}}^1$

素因数の和:1995

約数の個数: 32

約数和(自身を含む): 204374016

約数和(自身を除く): 75717537

約数列:

[1, 3, 7, 21, 31, 93, 107, 217, 321, 651, 749, 1847, 2247, 3317, 5541, 9951, 12929, 23219, 38787, 57257, 69657, 171771, 197629, 400799, 592887, 1202397, 1383403, 4150209, 6126499, 18379497, 42885493, 128656479]

約数ペア:

[(1, 128656479), (3, 42885493), (7, 18379497), (21, 6126499), (31, 4150209), (93, 1383403), (107, 1202397), (217, 592887), (321, 400799), (651, 197629), (749, 171771), (1847, 69657), (2247, 57257), (3317, 38787), (5541, 23219), (9951, 12929)]