81430908

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{521993}}^1$

素因数の和:522013

約数の個数: 24

約数和(自身を含む): 204621648

約数和(自身を除く): 123190740

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 521993, 1043986, 1565979, 2087972, 3131958, 6263916, 6785909, 13571818, 20357727, 27143636, 40715454, 81430908]

約数ペア:

[(1, 81430908), (2, 40715454), (3, 27143636), (4, 20357727), (6, 13571818), (12, 6785909), (13, 6263916), (26, 3131958), (39, 2087972), (52, 1565979), (78, 1043986), (156, 521993)]