21993912

素因数分解:

$2^3\times 3^2\times {\mathrm{305471}}^1$

素因数の和:305483

約数の個数: 24

約数和(自身を含む): 59567040

約数和(自身を除く): 37573128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 305471, 610942, 916413, 1221884, 1832826, 2443768, 2749239, 3665652, 5498478, 7331304, 10996956, 21993912]

約数ペア:

[(1, 21993912), (2, 10996956), (3, 7331304), (4, 5498478), (6, 3665652), (8, 2749239), (9, 2443768), (12, 1832826), (18, 1221884), (24, 916413), (36, 610942), (72, 305471)]