18219910

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2141}}^1$

素因数の和:2208

約数の個数: 32

約数和(自身を含む): 35163072

約数和(自身を除く): 16943162

約数列:

[1, 2, 5, 10, 23, 37, 46, 74, 115, 185, 230, 370, 851, 1702, 2141, 4255, 4282, 8510, 10705, 21410, 49243, 79217, 98486, 158434, 246215, 396085, 492430, 792170, 1821991, 3643982, 9109955, 18219910]

約数ペア:

[(1, 18219910), (2, 9109955), (5, 3643982), (10, 1821991), (23, 792170), (37, 492430), (46, 396085), (74, 246215), (115, 158434), (185, 98486), (230, 79217), (370, 49243), (851, 21410), (1702, 10705), (2141, 8510), (4255, 4282)]