21522645

素因数分解:

$3^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1217}}^1$

素因数の和:1362

約数の個数: 32

約数和(自身を含む): 38586240

約数和(自身を除く): 17063595

約数列:

[1, 3, 5, 9, 15, 27, 45, 131, 135, 393, 655, 1179, 1217, 1965, 3537, 3651, 5895, 6085, 10953, 17685, 18255, 32859, 54765, 159427, 164295, 478281, 797135, 1434843, 2391405, 4304529, 7174215, 21522645]

約数ペア:

[(1, 21522645), (3, 7174215), (5, 4304529), (9, 2391405), (15, 1434843), (27, 797135), (45, 478281), (131, 164295), (135, 159427), (393, 54765), (655, 32859), (1179, 18255), (1217, 17685), (1965, 10953), (3537, 6085), (3651, 5895)]