21654540

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13367}}^1$

素因数の和:13388

約数の個数: 60

約数和(自身を含む): 67936176

約数和(自身を除く): 46281636

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, 13367, 26734, 40101, 53468, 66835, 80202, 120303, 133670, 160404, 200505, 240606, 267340, 360909, 401010, 481212, 601515, 721818, 802020, 1082727, 1203030, 1443636, 1804545, 2165454, 2406060, 3609090, 4330908, 5413635, 7218180, 10827270, 21654540]

約数ペア:

[(1, 21654540), (2, 10827270), (3, 7218180), (4, 5413635), (5, 4330908), (6, 3609090), (9, 2406060), (10, 2165454), (12, 1804545), (15, 1443636), (18, 1203030), (20, 1082727), (27, 802020), (30, 721818), (36, 601515), (45, 481212), (54, 401010), (60, 360909), (81, 267340), (90, 240606), (108, 200505), (135, 160404), (162, 133670), (180, 120303), (270, 80202), (324, 66835), (405, 53468), (540, 40101), (810, 26734), (1620, 13367)]