21371210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{17959}}^1$

素因数の和:17990

約数の個数: 32

約数和(自身を含む): 46552320

約数和(自身を除く): 25181110

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 595, 1190, 17959, 35918, 89795, 125713, 179590, 251426, 305303, 610606, 628565, 1257130, 1526515, 2137121, 3053030, 4274242, 10685605, 21371210]

約数ペア:

[(1, 21371210), (2, 10685605), (5, 4274242), (7, 3053030), (10, 2137121), (14, 1526515), (17, 1257130), (34, 628565), (35, 610606), (70, 305303), (85, 251426), (119, 179590), (170, 125713), (238, 89795), (595, 35918), (1190, 17959)]