21807738

素因数分解:

$2^1\times 3^3\times {\mathrm{431}}^1\times {\mathrm{937}}^1$

素因数の和:1379

約数の個数: 32

約数和(自身を含む): 48625920

約数和(自身を除く): 26818182

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 431, 862, 937, 1293, 1874, 2586, 2811, 3879, 5622, 7758, 8433, 11637, 16866, 23274, 25299, 50598, 403847, 807694, 1211541, 2423082, 3634623, 7269246, 10903869, 21807738]

約数ペア:

[(1, 21807738), (2, 10903869), (3, 7269246), (6, 3634623), (9, 2423082), (18, 1211541), (27, 807694), (54, 403847), (431, 50598), (862, 25299), (937, 23274), (1293, 16866), (1874, 11637), (2586, 8433), (2811, 7758), (3879, 5622)]