18978216

素因数分解:

$2^3\times 3^1\times {\mathrm{331}}^1\times {\mathrm{2389}}^1$

素因数の和:2729

約数の個数: 32

約数和(自身を含む): 47608800

約数和(自身を除く): 28630584

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 331, 662, 993, 1324, 1986, 2389, 2648, 3972, 4778, 7167, 7944, 9556, 14334, 19112, 28668, 57336, 790759, 1581518, 2372277, 3163036, 4744554, 6326072, 9489108, 18978216]

約数ペア:

[(1, 18978216), (2, 9489108), (3, 6326072), (4, 4744554), (6, 3163036), (8, 2372277), (12, 1581518), (24, 790759), (331, 57336), (662, 28668), (993, 19112), (1324, 14334), (1986, 9556), (2389, 7944), (2648, 7167), (3972, 4778)]