21575340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1789}}^1$

素因数の和:1871

約数の個数: 72

約数和(自身を含む): 66459120

約数和(自身を除く): 44883780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 67, 90, 134, 180, 201, 268, 335, 402, 603, 670, 804, 1005, 1206, 1340, 1789, 2010, 2412, 3015, 3578, 4020, 5367, 6030, 7156, 8945, 10734, 12060, 16101, 17890, 21468, 26835, 32202, 35780, 53670, 64404, 80505, 107340, 119863, 161010, 239726, 322020, 359589, 479452, 599315, 719178, 1078767, 1198630, 1438356, 1797945, 2157534, 2397260, 3595890, 4315068, 5393835, 7191780, 10787670, 21575340]

約数ペア:

[(1, 21575340), (2, 10787670), (3, 7191780), (4, 5393835), (5, 4315068), (6, 3595890), (9, 2397260), (10, 2157534), (12, 1797945), (15, 1438356), (18, 1198630), (20, 1078767), (30, 719178), (36, 599315), (45, 479452), (60, 359589), (67, 322020), (90, 239726), (134, 161010), (180, 119863), (201, 107340), (268, 80505), (335, 64404), (402, 53670), (603, 35780), (670, 32202), (804, 26835), (1005, 21468), (1206, 17890), (1340, 16101), (1789, 12060), (2010, 10734), (2412, 8945), (3015, 7156), (3578, 6030), (4020, 5367)]