18021990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{85819}}^1$

素因数の和:85836

約数の個数: 32

約数和(自身を含む): 49432320

約数和(自身を除く): 31410330

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 85819, 171638, 257457, 429095, 514914, 600733, 858190, 1201466, 1287285, 1802199, 2574570, 3003665, 3604398, 6007330, 9010995, 18021990]

約数ペア:

[(1, 18021990), (2, 9010995), (3, 6007330), (5, 3604398), (6, 3003665), (7, 2574570), (10, 1802199), (14, 1287285), (15, 1201466), (21, 858190), (30, 600733), (35, 514914), (42, 429095), (70, 257457), (105, 171638), (210, 85819)]