80415909

素因数分解:

$3^4\times 7^2\times {\mathrm{20261}}^1$

素因数の和:20287

約数の個数: 30

約数和(自身を含む): 139747014

約数和(自身を除く): 59331105

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 20261, 60783, 141827, 182349, 425481, 547047, 992789, 1276443, 1641141, 2978367, 3829329, 8935101, 11487987, 26805303, 80415909]

約数ペア:

[(1, 80415909), (3, 26805303), (7, 11487987), (9, 8935101), (21, 3829329), (27, 2978367), (49, 1641141), (63, 1276443), (81, 992789), (147, 547047), (189, 425481), (441, 182349), (567, 141827), (1323, 60783), (3969, 20261)]