21805164

素因数分解:

$2^2\times 3^2\times {\mathrm{467}}^1\times {\mathrm{1297}}^1$

素因数の和:1774

約数の個数: 36

約数和(自身を含む): 55279224

約数和(自身を除く): 33474060

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 467, 934, 1297, 1401, 1868, 2594, 2802, 3891, 4203, 5188, 5604, 7782, 8406, 11673, 15564, 16812, 23346, 46692, 605699, 1211398, 1817097, 2422796, 3634194, 5451291, 7268388, 10902582, 21805164]

約数ペア:

[(1, 21805164), (2, 10902582), (3, 7268388), (4, 5451291), (6, 3634194), (9, 2422796), (12, 1817097), (18, 1211398), (36, 605699), (467, 46692), (934, 23346), (1297, 16812), (1401, 15564), (1868, 11673), (2594, 8406), (2802, 7782), (3891, 5604), (4203, 5188)]