19221891

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1223}}^1$

素因数の和:1283

約数の個数: 24

約数和(自身を含む): 28670976

約数和(自身を除く): 9449085

約数列:

[1, 3, 13, 31, 39, 93, 169, 403, 507, 1209, 1223, 3669, 5239, 15717, 15899, 37913, 47697, 113739, 206687, 492869, 620061, 1478607, 6407297, 19221891]

約数ペア:

[(1, 19221891), (3, 6407297), (13, 1478607), (31, 620061), (39, 492869), (93, 206687), (169, 113739), (403, 47697), (507, 37913), (1209, 15899), (1223, 15717), (3669, 5239)]