21624183

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 37340160

約数和(自身を除く): 15715977

約数列:

[1, 3, 7, 9, 21, 47, 63, 67, 109, 141, 201, 327, 329, 423, 469, 603, 763, 981, 987, 1407, 2289, 2961, 3149, 4221, 5123, 6867, 7303, 9447, 15369, 21909, 22043, 28341, 35861, 46107, 51121, 65727, 66129, 107583, 153363, 198387, 322749, 343241, 460089, 1029723, 2402687, 3089169, 7208061, 21624183]

約数ペア:

[(1, 21624183), (3, 7208061), (7, 3089169), (9, 2402687), (21, 1029723), (47, 460089), (63, 343241), (67, 322749), (109, 198387), (141, 153363), (201, 107583), (327, 66129), (329, 65727), (423, 51121), (469, 46107), (603, 35861), (763, 28341), (981, 22043), (987, 21909), (1407, 15369), (2289, 9447), (2961, 7303), (3149, 6867), (4221, 5123)]