221420619

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{74779}}^1$

素因数の和:74839

約数の個数: 24

約数和(自身を含む): 373301760

約数和(自身を除く): 151881141

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 74779, 224337, 523453, 673011, 1570359, 3514613, 4711077, 10543839, 24602291, 31631517, 73806873, 221420619]

約数ペア:

[(1, 221420619), (3, 73806873), (7, 31631517), (9, 24602291), (21, 10543839), (47, 4711077), (63, 3514613), (141, 1570359), (329, 673011), (423, 523453), (987, 224337), (2961, 74779)]