21576550

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 41983920

約数和(自身を除く): 20407370

約数列:

[1, 2, 5, 10, 25, 37, 50, 74, 107, 109, 185, 214, 218, 370, 535, 545, 925, 1070, 1090, 1850, 2675, 2725, 3959, 4033, 5350, 5450, 7918, 8066, 11663, 19795, 20165, 23326, 39590, 40330, 58315, 98975, 100825, 116630, 197950, 201650, 291575, 431531, 583150, 863062, 2157655, 4315310, 10788275, 21576550]

約数ペア:

[(1, 21576550), (2, 10788275), (5, 4315310), (10, 2157655), (25, 863062), (37, 583150), (50, 431531), (74, 291575), (107, 201650), (109, 197950), (185, 116630), (214, 100825), (218, 98975), (370, 58315), (535, 40330), (545, 39590), (925, 23326), (1070, 20165), (1090, 19795), (1850, 11663), (2675, 8066), (2725, 7918), (3959, 5450), (4033, 5350)]