21834180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1201}}^1$

素因数の和:1317

約数の個数: 72

約数和(自身を含む): 66941784

約数和(自身を除く): 45107604

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1201, 1212, 1515, 1818, 2020, 2402, 3030, 3603, 3636, 4545, 4804, 6005, 6060, 7206, 9090, 10809, 12010, 14412, 18015, 18180, 21618, 24020, 36030, 43236, 54045, 72060, 108090, 121301, 216180, 242602, 363903, 485204, 606505, 727806, 1091709, 1213010, 1455612, 1819515, 2183418, 2426020, 3639030, 4366836, 5458545, 7278060, 10917090, 21834180]

約数ペア:

[(1, 21834180), (2, 10917090), (3, 7278060), (4, 5458545), (5, 4366836), (6, 3639030), (9, 2426020), (10, 2183418), (12, 1819515), (15, 1455612), (18, 1213010), (20, 1091709), (30, 727806), (36, 606505), (45, 485204), (60, 363903), (90, 242602), (101, 216180), (180, 121301), (202, 108090), (303, 72060), (404, 54045), (505, 43236), (606, 36030), (909, 24020), (1010, 21618), (1201, 18180), (1212, 18015), (1515, 14412), (1818, 12010), (2020, 10809), (2402, 9090), (3030, 7206), (3603, 6060), (3636, 6005), (4545, 4804)]