31217914

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3989}}^1$

素因数の和:4054

約数の個数: 32

約数和(自身を含む): 58988160

約数和(自身を除く): 27770246

約数列:

[1, 2, 7, 13, 14, 26, 43, 86, 91, 182, 301, 559, 602, 1118, 3913, 3989, 7826, 7978, 27923, 51857, 55846, 103714, 171527, 343054, 362999, 725998, 1200689, 2229851, 2401378, 4459702, 15608957, 31217914]

約数ペア:

[(1, 31217914), (2, 15608957), (7, 4459702), (13, 2401378), (14, 2229851), (26, 1200689), (43, 725998), (86, 362999), (91, 343054), (182, 171527), (301, 103714), (559, 55846), (602, 51857), (1118, 27923), (3913, 7978), (3989, 7826)]