28734219

素因数分解:

$3^2\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:471

約数の個数: 24

約数和(自身を含む): 42398720

約数和(自身を除く): 13664501

約数列:

[1, 3, 9, 103, 139, 223, 309, 417, 669, 927, 1251, 2007, 14317, 22969, 30997, 42951, 68907, 92991, 128853, 206721, 278973, 3192691, 9578073, 28734219]

約数ペア:

[(1, 28734219), (3, 9578073), (9, 3192691), (103, 278973), (139, 206721), (223, 128853), (309, 92991), (417, 68907), (669, 42951), (927, 30997), (1251, 22969), (2007, 14317)]