21272220

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{1459}}^1$

素因数の和:1486

約数の個数: 84

約数和(自身を含む): 67022760

約数和(自身を除く): 45750540

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, 243, 270, 324, 405, 486, 540, 729, 810, 972, 1215, 1458, 1459, 1620, 2430, 2916, 2918, 3645, 4377, 4860, 5836, 7290, 7295, 8754, 13131, 14580, 14590, 17508, 21885, 26262, 29180, 39393, 43770, 52524, 65655, 78786, 87540, 118179, 131310, 157572, 196965, 236358, 262620, 354537, 393930, 472716, 590895, 709074, 787860, 1063611, 1181790, 1418148, 1772685, 2127222, 2363580, 3545370, 4254444, 5318055, 7090740, 10636110, 21272220]

約数ペア:

[(1, 21272220), (2, 10636110), (3, 7090740), (4, 5318055), (5, 4254444), (6, 3545370), (9, 2363580), (10, 2127222), (12, 1772685), (15, 1418148), (18, 1181790), (20, 1063611), (27, 787860), (30, 709074), (36, 590895), (45, 472716), (54, 393930), (60, 354537), (81, 262620), (90, 236358), (108, 196965), (135, 157572), (162, 131310), (180, 118179), (243, 87540), (270, 78786), (324, 65655), (405, 52524), (486, 43770), (540, 39393), (729, 29180), (810, 26262), (972, 21885), (1215, 17508), (1458, 14590), (1459, 14580), (1620, 13131), (2430, 8754), (2916, 7295), (2918, 7290), (3645, 5836), (4377, 4860)]