13281741

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 23063040

約数和(自身を除く): 9781299

約数列:

[1, 3, 9, 11, 19, 23, 33, 57, 69, 99, 171, 207, 209, 253, 307, 437, 627, 759, 921, 1311, 1881, 2277, 2763, 3377, 3933, 4807, 5833, 7061, 10131, 14421, 17499, 21183, 30393, 43263, 52497, 63549, 64163, 77671, 134159, 192489, 233013, 402477, 577467, 699039, 1207431, 1475749, 4427247, 13281741]

約数ペア:

[(1, 13281741), (3, 4427247), (9, 1475749), (11, 1207431), (19, 699039), (23, 577467), (33, 402477), (57, 233013), (69, 192489), (99, 134159), (171, 77671), (207, 64163), (209, 63549), (253, 52497), (307, 43263), (437, 30393), (627, 21183), (759, 17499), (921, 14421), (1311, 10131), (1881, 7061), (2277, 5833), (2763, 4807), (3377, 3933)]