28706783

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:207

約数の個数: 32

約数和(自身を含む): 36188160

約数和(自身を除く): 7481377

約数列:

[1, 7, 23, 37, 61, 79, 161, 259, 427, 553, 851, 1403, 1817, 2257, 2923, 4819, 5957, 9821, 12719, 15799, 20461, 33733, 51911, 67229, 110837, 178303, 363377, 470603, 775859, 1248121, 4100969, 28706783]

約数ペア:

[(1, 28706783), (7, 4100969), (23, 1248121), (37, 775859), (61, 470603), (79, 363377), (161, 178303), (259, 110837), (427, 67229), (553, 51911), (851, 33733), (1403, 20461), (1817, 15799), (2257, 12719), (2923, 9821), (4819, 5957)]