311016979

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1303}}^1$

素因数の和:1427

約数の個数: 32

約数和(自身を含む): 398418944

約数和(自身を除く): 87401965

約数列:

[1, 7, 13, 43, 61, 91, 301, 427, 559, 793, 1303, 2623, 3913, 5551, 9121, 16939, 18361, 34099, 56029, 79483, 118573, 238693, 392203, 556381, 728377, 1033279, 3417769, 5098639, 7232953, 23924383, 44430997, 311016979]

約数ペア:

[(1, 311016979), (7, 44430997), (13, 23924383), (43, 7232953), (61, 5098639), (91, 3417769), (301, 1033279), (427, 728377), (559, 556381), (793, 392203), (1303, 238693), (2623, 118573), (3913, 79483), (5551, 56029), (9121, 34099), (16939, 18361)]