15640803

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 24192000

約数和(自身を除く): 8551197

約数列:

[1, 3, 9, 27, 41, 71, 123, 199, 213, 369, 597, 639, 1107, 1791, 1917, 2911, 5373, 8159, 8733, 14129, 24477, 26199, 42387, 73431, 78597, 127161, 220293, 381483, 579289, 1737867, 5213601, 15640803]

約数ペア:

[(1, 15640803), (3, 5213601), (9, 1737867), (27, 579289), (41, 381483), (71, 220293), (123, 127161), (199, 78597), (213, 73431), (369, 42387), (597, 26199), (639, 24477), (1107, 14129), (1791, 8733), (1917, 8159), (2911, 5373)]