28008211

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 36426240

約数和(自身を除く): 8418029

約数列:

[1, 7, 11, 61, 67, 77, 89, 427, 469, 623, 671, 737, 979, 4087, 4697, 5159, 5429, 5963, 6853, 28609, 38003, 41741, 44957, 59719, 65593, 314699, 363743, 418033, 459151, 2546201, 4001173, 28008211]

約数ペア:

[(1, 28008211), (7, 4001173), (11, 2546201), (61, 459151), (67, 418033), (77, 363743), (89, 314699), (427, 65593), (469, 59719), (623, 44957), (671, 41741), (737, 38003), (979, 28609), (4087, 6853), (4697, 5963), (5159, 5429)]