388631243

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1741}}^1$

素因数の和:1995

約数の個数: 32

約数和(自身を含む): 524439552

約数和(自身を除く): 135808309

約数列:

[1, 7, 11, 13, 77, 91, 143, 223, 1001, 1561, 1741, 2453, 2899, 12187, 17171, 19151, 20293, 22633, 31889, 134057, 158431, 223223, 248963, 388243, 1742741, 2717701, 4270673, 5047159, 29894711, 35330113, 55518749, 388631243]

約数ペア:

[(1, 388631243), (7, 55518749), (11, 35330113), (13, 29894711), (77, 5047159), (91, 4270673), (143, 2717701), (223, 1742741), (1001, 388243), (1561, 248963), (1741, 223223), (2453, 158431), (2899, 134057), (12187, 31889), (17171, 22633), (19151, 20293)]