12978238

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:257

約数の個数: 48

約数和(自身を含む): 24935904

約数和(自身を除く): 11957666

約数列:

[1, 2, 7, 13, 14, 26, 49, 61, 91, 98, 122, 167, 182, 334, 427, 637, 793, 854, 1169, 1274, 1586, 2171, 2338, 2989, 4342, 5551, 5978, 8183, 10187, 11102, 15197, 16366, 20374, 30394, 38857, 71309, 77714, 106379, 132431, 142618, 212758, 264862, 499163, 927017, 998326, 1854034, 6489119, 12978238]

約数ペア:

[(1, 12978238), (2, 6489119), (7, 1854034), (13, 998326), (14, 927017), (26, 499163), (49, 264862), (61, 212758), (91, 142618), (98, 132431), (122, 106379), (167, 77714), (182, 71309), (334, 38857), (427, 30394), (637, 20374), (793, 16366), (854, 15197), (1169, 11102), (1274, 10187), (1586, 8183), (2171, 5978), (2338, 5551), (2989, 4342)]