19043420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{86561}}^1$

素因数の和:86581

約数の個数: 24

約数和(自身を含む): 43627248

約数和(自身を除く): 24583828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 86561, 173122, 346244, 432805, 865610, 952171, 1731220, 1904342, 3808684, 4760855, 9521710, 19043420]

約数ペア:

[(1, 19043420), (2, 9521710), (4, 4760855), (5, 3808684), (10, 1904342), (11, 1731220), (20, 952171), (22, 865610), (44, 432805), (55, 346244), (110, 173122), (220, 86561)]