28082747

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 37131264

約数和(自身を除く): 9048517

約数列:

[1, 7, 11, 23, 77, 101, 157, 161, 253, 707, 1099, 1111, 1727, 1771, 2323, 3611, 7777, 12089, 15857, 16261, 25277, 25553, 39721, 110999, 174427, 178871, 278047, 364711, 1220989, 2552977, 4011821, 28082747]

約数ペア:

[(1, 28082747), (7, 4011821), (11, 2552977), (23, 1220989), (77, 364711), (101, 278047), (157, 178871), (161, 174427), (253, 110999), (707, 39721), (1099, 25553), (1111, 25277), (1727, 16261), (1771, 15857), (2323, 12089), (3611, 7777)]