18991210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{15959}}^1$

素因数の和:15990

約数の個数: 32

約数和(自身を含む): 41368320

約数和(自身を除く): 22377110

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 595, 1190, 15959, 31918, 79795, 111713, 159590, 223426, 271303, 542606, 558565, 1117130, 1356515, 1899121, 2713030, 3798242, 9495605, 18991210]

約数ペア:

[(1, 18991210), (2, 9495605), (5, 3798242), (7, 2713030), (10, 1899121), (14, 1356515), (17, 1117130), (34, 558565), (35, 542606), (70, 271303), (85, 223426), (119, 159590), (170, 111713), (238, 79795), (595, 31918), (1190, 15959)]