19874079

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{2251}}^1$

素因数の和:2372

約数の個数: 20

約数和(自身を含む): 29974120

約数和(自身を除く): 10100041

約数列:

[1, 3, 9, 27, 81, 109, 327, 981, 2251, 2943, 6753, 8829, 20259, 60777, 182331, 245359, 736077, 2208231, 6624693, 19874079]

約数ペア:

[(1, 19874079), (3, 6624693), (9, 2208231), (27, 736077), (81, 245359), (109, 182331), (327, 60777), (981, 20259), (2251, 8829), (2943, 6753)]