19391420

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{6421}}^1$

素因数の和:6581

約数の個数: 24

約数和(自身を含む): 40998048

約数和(自身を除く): 21606628

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 6421, 12842, 25684, 32105, 64210, 128420, 969571, 1939142, 3878284, 4847855, 9695710, 19391420]

約数ペア:

[(1, 19391420), (2, 9695710), (4, 4847855), (5, 3878284), (10, 1939142), (20, 969571), (151, 128420), (302, 64210), (604, 32105), (755, 25684), (1510, 12842), (3020, 6421)]