19797030

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19997}}^1$

素因数の和:20021

約数の個数: 48

約数和(自身を含む): 56154384

約数和(自身を除く): 36357354

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 19997, 39994, 59991, 99985, 119982, 179973, 199970, 219967, 299955, 359946, 439934, 599910, 659901, 899865, 1099835, 1319802, 1799730, 1979703, 2199670, 3299505, 3959406, 6599010, 9898515, 19797030]

約数ペア:

[(1, 19797030), (2, 9898515), (3, 6599010), (5, 3959406), (6, 3299505), (9, 2199670), (10, 1979703), (11, 1799730), (15, 1319802), (18, 1099835), (22, 899865), (30, 659901), (33, 599910), (45, 439934), (55, 359946), (66, 299955), (90, 219967), (99, 199970), (110, 179973), (165, 119982), (198, 99985), (330, 59991), (495, 39994), (990, 19997)]