81373509

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{75979}}^1$

素因数の和:76009

約数の個数: 24

約数和(自身を含む): 142234560

約数和(自身を除く): 60861051

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 75979, 227937, 531853, 683811, 1291643, 1595559, 3874929, 4786677, 9041501, 11624787, 27124503, 81373509]

約数ペア:

[(1, 81373509), (3, 27124503), (7, 11624787), (9, 9041501), (17, 4786677), (21, 3874929), (51, 1595559), (63, 1291643), (119, 683811), (153, 531853), (357, 227937), (1071, 75979)]