21198690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{235541}}^1$

素因数の和:235554

約数の個数: 24

約数和(自身を含む): 55116828

約数和(自身を除く): 33918138

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 235541, 471082, 706623, 1177705, 1413246, 2119869, 2355410, 3533115, 4239738, 7066230, 10599345, 21198690]

約数ペア:

[(1, 21198690), (2, 10599345), (3, 7066230), (5, 4239738), (6, 3533115), (9, 2355410), (10, 2119869), (15, 1413246), (18, 1177705), (30, 706623), (45, 471082), (90, 235541)]