28004389

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:277

約数の個数: 24

約数和(自身を含む): 34580480

約数和(自身を除く): 6576091

約数列:

[1, 7, 17, 109, 119, 127, 289, 763, 889, 1853, 2023, 2159, 12971, 13843, 15113, 31501, 36703, 96901, 220507, 235331, 256921, 1647317, 4000627, 28004389]

約数ペア:

[(1, 28004389), (7, 4000627), (17, 1647317), (109, 256921), (119, 235331), (127, 220507), (289, 96901), (763, 36703), (889, 31501), (1853, 15113), (2023, 13843), (2159, 12971)]