20868595

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^2\times {\mathrm{109}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 28044720

約数和(自身を除く): 7176125

約数列:

[1, 5, 11, 55, 59, 109, 295, 545, 649, 1199, 3245, 3481, 5995, 6431, 17405, 32155, 38291, 70741, 191455, 353705, 379429, 1897145, 4173719, 20868595]

約数ペア:

[(1, 20868595), (5, 4173719), (11, 1897145), (55, 379429), (59, 353705), (109, 191455), (295, 70741), (545, 38291), (649, 32155), (1199, 17405), (3245, 6431), (3481, 5995)]