18806645

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{907}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 27457920

約数和(自身を除く): 8651275

約数列:

[1, 5, 11, 13, 29, 55, 65, 143, 145, 319, 377, 715, 907, 1595, 1885, 4147, 4535, 9977, 11791, 20735, 26303, 49885, 58955, 129701, 131515, 289333, 341939, 648505, 1446665, 1709695, 3761329, 18806645]

約数ペア:

[(1, 18806645), (5, 3761329), (11, 1709695), (13, 1446665), (29, 648505), (55, 341939), (65, 289333), (143, 131515), (145, 129701), (319, 58955), (377, 49885), (715, 26303), (907, 20735), (1595, 11791), (1885, 9977), (4147, 4535)]