20463870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13921}}^1$

素因数の和:13945

約数の個数: 48

約数和(自身を含む): 57135888

約数和(自身を除く): 36672018

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 13921, 27842, 41763, 69605, 83526, 97447, 139210, 194894, 208815, 292341, 417630, 487235, 584682, 682129, 974470, 1364258, 1461705, 2046387, 2923410, 3410645, 4092774, 6821290, 10231935, 20463870]

約数ペア:

[(1, 20463870), (2, 10231935), (3, 6821290), (5, 4092774), (6, 3410645), (7, 2923410), (10, 2046387), (14, 1461705), (15, 1364258), (21, 974470), (30, 682129), (35, 584682), (42, 487235), (49, 417630), (70, 292341), (98, 208815), (105, 194894), (147, 139210), (210, 97447), (245, 83526), (294, 69605), (490, 41763), (735, 27842), (1470, 13921)]