19943937

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{457}}^1$

素因数の和:849

約数の個数: 24

約数和(自身を含む): 31175144

約数和(自身を除く): 11231207

約数列:

[1, 3, 9, 13, 39, 117, 373, 457, 1119, 1371, 3357, 4113, 4849, 5941, 14547, 17823, 43641, 53469, 170461, 511383, 1534149, 2215993, 6647979, 19943937]

約数ペア:

[(1, 19943937), (3, 6647979), (9, 2215993), (13, 1534149), (39, 511383), (117, 170461), (373, 53469), (457, 43641), (1119, 17823), (1371, 14547), (3357, 5941), (4113, 4849)]