21750520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49433}}^1$

素因数の和:49455

約数の個数: 32

約数和(自身を含む): 53388720

約数和(自身を除く): 31638200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49433, 98866, 197732, 247165, 395464, 494330, 543763, 988660, 1087526, 1977320, 2175052, 2718815, 4350104, 5437630, 10875260, 21750520]

約数ペア:

[(1, 21750520), (2, 10875260), (4, 5437630), (5, 4350104), (8, 2718815), (10, 2175052), (11, 1977320), (20, 1087526), (22, 988660), (40, 543763), (44, 494330), (55, 395464), (88, 247165), (110, 197732), (220, 98866), (440, 49433)]