20961129

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1$

素因数の和:609

約数の個数: 32

約数和(自身を含む): 33488640

約数和(自身を除く): 12527511

約数列:

[1, 3, 7, 21, 37, 53, 111, 159, 259, 371, 509, 777, 1113, 1527, 1961, 3563, 5883, 10689, 13727, 18833, 26977, 41181, 56499, 80931, 131831, 188839, 395493, 566517, 998149, 2994447, 6987043, 20961129]

約数ペア:

[(1, 20961129), (3, 6987043), (7, 2994447), (21, 998149), (37, 566517), (53, 395493), (111, 188839), (159, 131831), (259, 80931), (371, 56499), (509, 41181), (777, 26977), (1113, 18833), (1527, 13727), (1961, 10689), (3563, 5883)]