20931960495

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3467}}^1\times {\mathrm{5669}}^1$

素因数の和:9215

約数の個数: 32

約数和(自身を含む): 33978631680

約数和(自身を除く): 13046671185

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 3467, 5669, 10401, 17007, 17335, 28345, 52005, 85035, 246157, 402499, 738471, 1207497, 1230785, 2012495, 3692355, 6037485, 19654423, 58963269, 98272115, 294816345, 1395464033, 4186392099, 6977320165, 20931960495]

約数ペア:

[(1, 20931960495), (3, 6977320165), (5, 4186392099), (15, 1395464033), (71, 294816345), (213, 98272115), (355, 58963269), (1065, 19654423), (3467, 6037485), (5669, 3692355), (10401, 2012495), (17007, 1230785), (17335, 1207497), (28345, 738471), (52005, 402499), (85035, 246157)]