19646705

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 26611200

約数和(自身を除く): 6964495

約数列:

[1, 5, 13, 47, 59, 65, 109, 235, 295, 545, 611, 767, 1417, 2773, 3055, 3835, 5123, 6431, 7085, 13865, 25615, 32155, 36049, 66599, 83603, 180245, 302257, 332995, 418015, 1511285, 3929341, 19646705]

約数ペア:

[(1, 19646705), (5, 3929341), (13, 1511285), (47, 418015), (59, 332995), (65, 302257), (109, 180245), (235, 83603), (295, 66599), (545, 36049), (611, 32155), (767, 25615), (1417, 13865), (2773, 7085), (3055, 6431), (3835, 5123)]