19400978

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 32348160

約数和(自身を除く): 12947182

約数列:

[1, 2, 17, 31, 34, 62, 79, 158, 233, 466, 527, 1054, 1343, 2449, 2686, 3961, 4898, 7223, 7922, 14446, 18407, 36814, 41633, 83266, 122791, 245582, 312919, 570617, 625838, 1141234, 9700489, 19400978]

約数ペア:

[(1, 19400978), (2, 9700489), (17, 1141234), (31, 625838), (34, 570617), (62, 312919), (79, 245582), (158, 122791), (233, 83266), (466, 41633), (527, 36814), (1054, 18407), (1343, 14446), (2449, 7922), (2686, 7223), (3961, 4898)]