81424028

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{43403}}^1$

素因数の和:43481

約数の個数: 24

約数和(自身を含む): 165282432

約数和(自身を除く): 83858404

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 268, 469, 938, 1876, 43403, 86806, 173612, 303821, 607642, 1215284, 2908001, 5816002, 11632004, 20356007, 40712014, 81424028]

約数ペア:

[(1, 81424028), (2, 40712014), (4, 20356007), (7, 11632004), (14, 5816002), (28, 2908001), (67, 1215284), (134, 607642), (268, 303821), (469, 173612), (938, 86806), (1876, 43403)]