81019215

素因数分解:

$3^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{10781}}^1$

素因数の和:10959

約数の個数: 24

約数和(自身を含む): 141287328

約数和(自身を除く): 60268113

約数列:

[1, 3, 5, 9, 15, 45, 167, 501, 835, 1503, 2505, 7515, 10781, 32343, 53905, 97029, 161715, 485145, 1800427, 5401281, 9002135, 16203843, 27006405, 81019215]

約数ペア:

[(1, 81019215), (3, 27006405), (5, 16203843), (9, 9002135), (15, 5401281), (45, 1800427), (167, 485145), (501, 161715), (835, 97029), (1503, 53905), (2505, 32343), (7515, 10781)]