19911870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20113}}^1$

素因数の和:20137

約数の個数: 48

約数和(自身を含む): 56480112

約数和(自身を除く): 36568242

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 20113, 40226, 60339, 100565, 120678, 181017, 201130, 221243, 301695, 362034, 442486, 603390, 663729, 905085, 1106215, 1327458, 1810170, 1991187, 2212430, 3318645, 3982374, 6637290, 9955935, 19911870]

約数ペア:

[(1, 19911870), (2, 9955935), (3, 6637290), (5, 3982374), (6, 3318645), (9, 2212430), (10, 1991187), (11, 1810170), (15, 1327458), (18, 1106215), (22, 905085), (30, 663729), (33, 603390), (45, 442486), (55, 362034), (66, 301695), (90, 221243), (99, 201130), (110, 181017), (165, 120678), (198, 100565), (330, 60339), (495, 40226), (990, 20113)]