19986228

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{12911}}^1$

素因数の和:12964

約数の個数: 36

約数和(自身を含む): 51699648

約数和(自身を除く): 31713420

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 12911, 25822, 38733, 51644, 77466, 116199, 154932, 232398, 464796, 555173, 1110346, 1665519, 2220692, 3331038, 4996557, 6662076, 9993114, 19986228]

約数ペア:

[(1, 19986228), (2, 9993114), (3, 6662076), (4, 4996557), (6, 3331038), (9, 2220692), (12, 1665519), (18, 1110346), (36, 555173), (43, 464796), (86, 232398), (129, 154932), (172, 116199), (258, 77466), (387, 51644), (516, 38733), (774, 25822), (1548, 12911)]