21381528

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{127271}}^1$

素因数の和:127287

約数の個数: 32

約数和(自身を含む): 61090560

約数和(自身を除く): 39709032

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 127271, 254542, 381813, 509084, 763626, 890897, 1018168, 1527252, 1781794, 2672691, 3054504, 3563588, 5345382, 7127176, 10690764, 21381528]

約数ペア:

[(1, 21381528), (2, 10690764), (3, 7127176), (4, 5345382), (6, 3563588), (7, 3054504), (8, 2672691), (12, 1781794), (14, 1527252), (21, 1018168), (24, 890897), (28, 763626), (42, 509084), (56, 381813), (84, 254542), (168, 127271)]