13980447

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{331}}^1$

素因数の和:388

約数の個数: 36

約数和(自身を含む): 23021544

約数和(自身を除く): 9041097

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 331, 361, 741, 993, 1083, 2223, 2979, 3249, 4303, 4693, 6289, 12909, 14079, 18867, 38727, 42237, 56601, 81757, 119491, 245271, 358473, 735813, 1075419, 1553383, 4660149, 13980447]

約数ペア:

[(1, 13980447), (3, 4660149), (9, 1553383), (13, 1075419), (19, 735813), (39, 358473), (57, 245271), (117, 119491), (171, 81757), (247, 56601), (331, 42237), (361, 38727), (741, 18867), (993, 14079), (1083, 12909), (2223, 6289), (2979, 4693), (3249, 4303)]