19945746

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{15607}}^1$

素因数の和:15686

約数の個数: 24

約数和(自身を含む): 43827264

約数和(自身を除く): 23881518

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 15607, 31214, 46821, 93642, 140463, 280926, 1108097, 2216194, 3324291, 6648582, 9972873, 19945746]

約数ペア:

[(1, 19945746), (2, 9972873), (3, 6648582), (6, 3324291), (9, 2216194), (18, 1108097), (71, 280926), (142, 140463), (213, 93642), (426, 46821), (639, 31214), (1278, 15607)]