21227115

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15551}}^1$

素因数の和:15579

約数の個数: 32

約数和(自身を含む): 41803776

約数和(自身を除く): 20576661

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15551, 46653, 77755, 108857, 202163, 233265, 326571, 544285, 606489, 1010815, 1415141, 1632855, 3032445, 4245423, 7075705, 21227115]

約数ペア:

[(1, 21227115), (3, 7075705), (5, 4245423), (7, 3032445), (13, 1632855), (15, 1415141), (21, 1010815), (35, 606489), (39, 544285), (65, 326571), (91, 233265), (105, 202163), (195, 108857), (273, 77755), (455, 46653), (1365, 15551)]