21317580

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13159}}^1$

素因数の和:13180

約数の個数: 60

約数和(自身を含む): 66879120

約数和(自身を除く): 45561540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 13159, 26318, 39477, 52636, 65795, 78954, 118431, 131590, 157908, 197385, 236862, 263180, 355293, 394770, 473724, 592155, 710586, 789540, 1065879, 1184310, 1421172, 1776465, 2131758, 2368620, 3552930, 4263516, 5329395, 7105860, 10658790, 21317580]

約数ペア:

[(1, 21317580), (2, 10658790), (3, 7105860), (4, 5329395), (5, 4263516), (6, 3552930), (9, 2368620), (10, 2131758), (12, 1776465), (15, 1421172), (18, 1184310), (20, 1065879), (27, 789540), (30, 710586), (36, 592155), (45, 473724), (54, 394770), (60, 355293), (81, 263180), (90, 236862), (108, 197385), (135, 157908), (162, 131590), (180, 118431), (270, 78954), (324, 65795), (405, 52636), (540, 39477), (810, 26318), (1620, 13159)]