15317211

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2953}}^1$

素因数の和:2995

約数の個数: 32

約数和(自身を含む): 26467840

約数和(自身を除く): 11150629

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 2953, 5187, 8859, 20671, 38389, 56107, 62013, 115167, 168321, 268723, 392749, 729391, 806169, 1178247, 2188173, 5105737, 15317211]

約数ペア:

[(1, 15317211), (3, 5105737), (7, 2188173), (13, 1178247), (19, 806169), (21, 729391), (39, 392749), (57, 268723), (91, 168321), (133, 115167), (247, 62013), (273, 56107), (399, 38389), (741, 20671), (1729, 8859), (2953, 5187)]