12387879

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6343}}^1$

素因数の和:6387

約数の個数: 24

約数和(自身を含む): 21112832

約数和(自身を除く): 8724953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 6343, 19029, 44401, 57087, 133203, 196633, 399609, 589899, 1376431, 1769697, 4129293, 12387879]

約数ペア:

[(1, 12387879), (3, 4129293), (7, 1769697), (9, 1376431), (21, 589899), (31, 399609), (63, 196633), (93, 133203), (217, 57087), (279, 44401), (651, 19029), (1953, 6343)]