20197802317

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{11777}}^1\times {\mathrm{22273}}^1$

素因数の和:34068

約数の個数: 16

約数和(自身を含む): 25184944512

約数和(自身を除く): 4987142195

約数列:

[1, 7, 11, 77, 11777, 22273, 82439, 129547, 155911, 245003, 906829, 1715021, 262309121, 1836163847, 2885400331, 20197802317]

約数ペア:

[(1, 20197802317), (7, 2885400331), (11, 1836163847), (77, 262309121), (11777, 1715021), (22273, 906829), (82439, 245003), (129547, 155911)]