19991448

素因数分解:

$2^3\times 3^4\times {\mathrm{30851}}^1$

素因数の和:30869

約数の個数: 40

約数和(自身を含む): 55996380

約数和(自身を除く): 36004932

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 30851, 61702, 92553, 123404, 185106, 246808, 277659, 370212, 555318, 740424, 832977, 1110636, 1665954, 2221272, 2498931, 3331908, 4997862, 6663816, 9995724, 19991448]

約数ペア:

[(1, 19991448), (2, 9995724), (3, 6663816), (4, 4997862), (6, 3331908), (8, 2498931), (9, 2221272), (12, 1665954), (18, 1110636), (24, 832977), (27, 740424), (36, 555318), (54, 370212), (72, 277659), (81, 246808), (108, 185106), (162, 123404), (216, 92553), (324, 61702), (648, 30851)]