51921405

素因数分解:

$3^4\times 5^1\times {\mathrm{128201}}^1$

素因数の和:128218

約数の個数: 20

約数和(自身を含む): 93074652

約数和(自身を除く): 41153247

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 128201, 384603, 641005, 1153809, 1923015, 3461427, 5769045, 10384281, 17307135, 51921405]

約数ペア:

[(1, 51921405), (3, 17307135), (5, 10384281), (9, 5769045), (15, 3461427), (27, 1923015), (45, 1153809), (81, 641005), (135, 384603), (405, 128201)]