21001785710

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3643}}^1\times {\mathrm{15581}}^1$

素因数の和:19268

約数の個数: 32

約数和(自身を含む): 38838072672

約数和(自身を除く): 17836286962

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 3643, 7286, 15581, 18215, 31162, 36430, 77905, 134791, 155810, 269582, 576497, 673955, 1152994, 1347910, 2882485, 5764970, 56761583, 113523166, 283807915, 567615830, 2100178571, 4200357142, 10500892855, 21001785710]

約数ペア:

[(1, 21001785710), (2, 10500892855), (5, 4200357142), (10, 2100178571), (37, 567615830), (74, 283807915), (185, 113523166), (370, 56761583), (3643, 5764970), (7286, 2882485), (15581, 1347910), (18215, 1152994), (31162, 673955), (36430, 576497), (77905, 269582), (134791, 155810)]