20766465

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15913}}^1$

素因数の和:15953

約数の個数: 24

約数和(自身を含む): 37238760

約数和(自身を除く): 16472295

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 15913, 47739, 79565, 143217, 238695, 461477, 716085, 1384431, 2307385, 4153293, 6922155, 20766465]

約数ペア:

[(1, 20766465), (3, 6922155), (5, 4153293), (9, 2307385), (15, 1384431), (29, 716085), (45, 461477), (87, 238695), (145, 143217), (261, 79565), (435, 47739), (1305, 15913)]