209970873

素因数分解:

$3^4\times 7^1\times {\mathrm{547}}^1\times {\mathrm{677}}^1$

素因数の和:1243

約数の個数: 40

約数和(自身を含む): 359654592

約数和(自身を除く): 149683719

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 547, 567, 677, 1641, 2031, 3829, 4739, 4923, 6093, 11487, 14217, 14769, 18279, 34461, 42651, 44307, 54837, 103383, 127953, 310149, 370319, 383859, 1110957, 2592233, 3332871, 7776699, 9998613, 23330097, 29995839, 69990291, 209970873]

約数ペア:

[(1, 209970873), (3, 69990291), (7, 29995839), (9, 23330097), (21, 9998613), (27, 7776699), (63, 3332871), (81, 2592233), (189, 1110957), (547, 383859), (567, 370319), (677, 310149), (1641, 127953), (2031, 103383), (3829, 54837), (4739, 44307), (4923, 42651), (6093, 34461), (11487, 18279), (14217, 14769)]