21617210

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{227}}^1$

素因数の和:430

約数の個数: 32

約数和(自身を含む): 39890880

約数和(自身を除く): 18273670

約数列:

[1, 2, 5, 10, 89, 107, 178, 214, 227, 445, 454, 535, 890, 1070, 1135, 2270, 9523, 19046, 20203, 24289, 40406, 47615, 48578, 95230, 101015, 121445, 202030, 242890, 2161721, 4323442, 10808605, 21617210]

約数ペア:

[(1, 21617210), (2, 10808605), (5, 4323442), (10, 2161721), (89, 242890), (107, 202030), (178, 121445), (214, 101015), (227, 95230), (445, 48578), (454, 47615), (535, 40406), (890, 24289), (1070, 20203), (1135, 19046), (2270, 9523)]