21051705

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 35086464

約数和(自身を除く): 14034759

約数列:

[1, 3, 5, 15, 37, 83, 111, 185, 249, 415, 457, 555, 1245, 1371, 2285, 3071, 6855, 9213, 15355, 16909, 37931, 46065, 50727, 84545, 113793, 189655, 253635, 568965, 1403447, 4210341, 7017235, 21051705]

約数ペア:

[(1, 21051705), (3, 7017235), (5, 4210341), (15, 1403447), (37, 568965), (83, 253635), (111, 189655), (185, 113793), (249, 84545), (415, 50727), (457, 46065), (555, 37931), (1245, 16909), (1371, 15355), (2285, 9213), (3071, 6855)]