19638451

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{727}}^1$

素因数の和:978

約数の個数: 16

約数和(自身を含む): 23901696

約数和(自身を除く): 4263245

約数列:

[1, 7, 17, 119, 227, 727, 1589, 3859, 5089, 12359, 27013, 86513, 165029, 1155203, 2805493, 19638451]

約数ペア:

[(1, 19638451), (7, 2805493), (17, 1155203), (119, 165029), (227, 86513), (727, 27013), (1589, 12359), (3859, 5089)]