20017395

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5113}}^1$

素因数の和:5156

約数の個数: 32

約数和(自身を含む): 36820800

約数和(自身を除く): 16803405

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 5113, 15339, 25565, 46017, 76695, 138051, 148277, 230085, 444831, 690255, 741385, 1334493, 2224155, 4003479, 6672465, 20017395]

約数ペア:

[(1, 20017395), (3, 6672465), (5, 4003479), (9, 2224155), (15, 1334493), (27, 741385), (29, 690255), (45, 444831), (87, 230085), (135, 148277), (145, 138051), (261, 76695), (435, 46017), (783, 25565), (1305, 15339), (3915, 5113)]