28499835

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20879}}^1$

素因数の和:20907

約数の個数: 32

約数和(自身を含む): 56125440

約数和(自身を除く): 27625605

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 20879, 62637, 104395, 146153, 271427, 313185, 438459, 730765, 814281, 1357135, 1899989, 2192295, 4071405, 5699967, 9499945, 28499835]

約数ペア:

[(1, 28499835), (3, 9499945), (5, 5699967), (7, 4071405), (13, 2192295), (15, 1899989), (21, 1357135), (35, 814281), (39, 730765), (65, 438459), (91, 313185), (105, 271427), (195, 146153), (273, 104395), (455, 62637), (1365, 20879)]