21431890

素因数分解:

$2^1\times 5^1\times {\mathrm{461}}^1\times {\mathrm{4649}}^1$

素因数の和:5117

約数の個数: 16

約数和(自身を含む): 38669400

約数和(自身を除く): 17237510

約数列:

[1, 2, 5, 10, 461, 922, 2305, 4610, 4649, 9298, 23245, 46490, 2143189, 4286378, 10715945, 21431890]

約数ペア:

[(1, 21431890), (2, 10715945), (5, 4286378), (10, 2143189), (461, 46490), (922, 23245), (2305, 9298), (4610, 4649)]