21497726439

素因数分解:

$3^2\times 7^2\times {\mathrm{769}}^1\times {\mathrm{63391}}^1$

素因数の和:64180

約数の個数: 36

約数和(自身を含む): 36169573440

約数和(自身を除く): 14671847001

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 769, 2307, 5383, 6921, 16149, 37681, 48447, 63391, 113043, 190173, 339129, 443737, 570519, 1331211, 3106159, 3993633, 9318477, 27955431, 48747679, 146243037, 341233753, 438729111, 1023701259, 2388636271, 3071103777, 7165908813, 21497726439]

約数ペア:

[(1, 21497726439), (3, 7165908813), (7, 3071103777), (9, 2388636271), (21, 1023701259), (49, 438729111), (63, 341233753), (147, 146243037), (441, 48747679), (769, 27955431), (2307, 9318477), (5383, 3993633), (6921, 3106159), (16149, 1331211), (37681, 570519), (48447, 443737), (63391, 339129), (113043, 190173)]