28406817

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1259}}^1$

素因数の和:1397

約数の個数: 24

約数和(自身を含む): 43243200

約数和(自身を除く): 14836383

約数列:

[1, 3, 9, 23, 69, 109, 207, 327, 981, 1259, 2507, 3777, 7521, 11331, 22563, 28957, 86871, 137231, 260613, 411693, 1235079, 3156313, 9468939, 28406817]

約数ペア:

[(1, 28406817), (3, 9468939), (9, 3156313), (23, 1235079), (69, 411693), (109, 260613), (207, 137231), (327, 86871), (981, 28957), (1259, 22563), (2507, 11331), (3777, 7521)]