21092245

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{3319}}^1$

素因数の和:3396

約数の個数: 16

約数和(自身を含む): 26772480

約数和(自身を除く): 5680235

約数列:

[1, 5, 31, 41, 155, 205, 1271, 3319, 6355, 16595, 102889, 136079, 514445, 680395, 4218449, 21092245]

約数ペア:

[(1, 21092245), (5, 4218449), (31, 680395), (41, 514445), (155, 136079), (205, 102889), (1271, 16595), (3319, 6355)]