21354216

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{68443}}^1$

素因数の和:68465

約数の個数: 32

約数和(自身を含む): 57492960

約数和(自身を除く): 36138744

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 68443, 136886, 205329, 273772, 410658, 547544, 821316, 889759, 1642632, 1779518, 2669277, 3559036, 5338554, 7118072, 10677108, 21354216]

約数ペア:

[(1, 21354216), (2, 10677108), (3, 7118072), (4, 5338554), (6, 3559036), (8, 2669277), (12, 1779518), (13, 1642632), (24, 889759), (26, 821316), (39, 547544), (52, 410658), (78, 273772), (104, 205329), (156, 136886), (312, 68443)]