16921645

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 23224320

約数和(自身を除く): 6302675

約数列:

[1, 5, 13, 29, 47, 65, 145, 191, 235, 377, 611, 955, 1363, 1885, 2483, 3055, 5539, 6815, 8977, 12415, 17719, 27695, 44885, 72007, 88595, 116701, 260333, 360035, 583505, 1301665, 3384329, 16921645]

約数ペア:

[(1, 16921645), (5, 3384329), (13, 1301665), (29, 583505), (47, 360035), (65, 260333), (145, 116701), (191, 88595), (235, 72007), (377, 44885), (611, 27695), (955, 17719), (1363, 12415), (1885, 8977), (2483, 6815), (3055, 5539)]