9906215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 13934592

約数和(自身を除く): 4028377

約数列:

[1, 5, 11, 23, 41, 55, 115, 191, 205, 253, 451, 943, 955, 1265, 2101, 2255, 4393, 4715, 7831, 10373, 10505, 21965, 39155, 48323, 51865, 86141, 180113, 241615, 430705, 900565, 1981243, 9906215]

約数ペア:

[(1, 9906215), (5, 1981243), (11, 900565), (23, 430705), (41, 241615), (55, 180113), (115, 86141), (191, 51865), (205, 48323), (253, 39155), (451, 21965), (943, 10505), (955, 10373), (1265, 7831), (2101, 4715), (2255, 4393)]