21200900405

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{8573}}^1$

素因数の和:8821

約数の個数: 32

約数和(自身を含む): 26446331520

約数和(自身を除く): 5245431115

約数列:

[1, 5, 59, 83, 101, 295, 415, 505, 4897, 5959, 8383, 8573, 24485, 29795, 41915, 42865, 494597, 505807, 711559, 865873, 2472985, 2529035, 3557795, 4329365, 41981981, 51086507, 71867459, 209909905, 255432535, 359337295, 4240180081, 21200900405]

約数ペア:

[(1, 21200900405), (5, 4240180081), (59, 359337295), (83, 255432535), (101, 209909905), (295, 71867459), (415, 51086507), (505, 41981981), (4897, 4329365), (5959, 3557795), (8383, 2529035), (8573, 2472985), (24485, 865873), (29795, 711559), (41915, 505807), (42865, 494597)]