21386204319

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{5139679}}^1$

素因数の和:5139774

約数の個数: 16

約数和(自身を含む): 30426905600

約数和(自身を除く): 9040701281

約数列:

[1, 3, 19, 57, 73, 219, 1387, 4161, 5139679, 15419037, 97653901, 292961703, 375196567, 1125589701, 7128734773, 21386204319]

約数ペア:

[(1, 21386204319), (3, 7128734773), (19, 1125589701), (57, 375196567), (73, 292961703), (219, 97653901), (1387, 15419037), (4161, 5139679)]