21160645

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{6521}}^1$

素因数の和:6596

約数の個数: 16

約数和(自身を含む): 28175040

約数和(自身を除く): 7014395

約数列:

[1, 5, 11, 55, 59, 295, 649, 3245, 6521, 32605, 71731, 358655, 384739, 1923695, 4232129, 21160645]

約数ペア:

[(1, 21160645), (5, 4232129), (11, 1923695), (55, 384739), (59, 358655), (295, 71731), (649, 32605), (3245, 6521)]