21004440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1549}}^1$

素因数の和:1676

約数の個数: 64

約数和(自身を含む): 63612000

約数和(自身を除く): 42607560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 113, 120, 226, 339, 452, 565, 678, 904, 1130, 1356, 1549, 1695, 2260, 2712, 3098, 3390, 4520, 4647, 6196, 6780, 7745, 9294, 12392, 13560, 15490, 18588, 23235, 30980, 37176, 46470, 61960, 92940, 175037, 185880, 350074, 525111, 700148, 875185, 1050222, 1400296, 1750370, 2100444, 2625555, 3500740, 4200888, 5251110, 7001480, 10502220, 21004440]

約数ペア:

[(1, 21004440), (2, 10502220), (3, 7001480), (4, 5251110), (5, 4200888), (6, 3500740), (8, 2625555), (10, 2100444), (12, 1750370), (15, 1400296), (20, 1050222), (24, 875185), (30, 700148), (40, 525111), (60, 350074), (113, 185880), (120, 175037), (226, 92940), (339, 61960), (452, 46470), (565, 37176), (678, 30980), (904, 23235), (1130, 18588), (1356, 15490), (1549, 13560), (1695, 12392), (2260, 9294), (2712, 7745), (3098, 6780), (3390, 6196), (4520, 4647)]