20220389

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{587}}^1$

素因数の和:657

約数の個数: 24

約数和(自身を含む): 25472160

約数和(自身を除く): 5251771

約数列:

[1, 7, 19, 37, 49, 133, 259, 587, 703, 931, 1813, 4109, 4921, 11153, 21719, 28763, 34447, 78071, 152033, 412661, 546497, 1064231, 2888627, 20220389]

約数ペア:

[(1, 20220389), (7, 2888627), (19, 1064231), (37, 546497), (49, 412661), (133, 152033), (259, 78071), (587, 34447), (703, 28763), (931, 21719), (1813, 11153), (4109, 4921)]