31107788

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{2143}}^1$

素因数の和:2357

約数の個数: 24

約数和(自身を含む): 57630720

約数和(自身を除く): 26522932

約数列:

[1, 2, 4, 19, 38, 76, 191, 382, 764, 2143, 3629, 4286, 7258, 8572, 14516, 40717, 81434, 162868, 409313, 818626, 1637252, 7776947, 15553894, 31107788]

約数ペア:

[(1, 31107788), (2, 15553894), (4, 7776947), (19, 1637252), (38, 818626), (76, 409313), (191, 162868), (382, 81434), (764, 40717), (2143, 14516), (3629, 8572), (4286, 7258)]