21342060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{853}}^1$

素因数の和:1007

約数の個数: 72

約数和(自身を含む): 65279760

約数和(自身を除く): 43937700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 853, 1251, 1390, 1668, 1706, 2085, 2502, 2559, 2780, 3412, 4170, 4265, 5004, 5118, 6255, 7677, 8340, 8530, 10236, 12510, 12795, 15354, 17060, 25020, 25590, 30708, 38385, 51180, 76770, 118567, 153540, 237134, 355701, 474268, 592835, 711402, 1067103, 1185670, 1422804, 1778505, 2134206, 2371340, 3557010, 4268412, 5335515, 7114020, 10671030, 21342060]

約数ペア:

[(1, 21342060), (2, 10671030), (3, 7114020), (4, 5335515), (5, 4268412), (6, 3557010), (9, 2371340), (10, 2134206), (12, 1778505), (15, 1422804), (18, 1185670), (20, 1067103), (30, 711402), (36, 592835), (45, 474268), (60, 355701), (90, 237134), (139, 153540), (180, 118567), (278, 76770), (417, 51180), (556, 38385), (695, 30708), (834, 25590), (853, 25020), (1251, 17060), (1390, 15354), (1668, 12795), (1706, 12510), (2085, 10236), (2502, 8530), (2559, 8340), (2780, 7677), (3412, 6255), (4170, 5118), (4265, 5004)]