19881510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{5477}}^1$

素因数の和:5509

約数の個数: 48

約数和(自身を含む): 52457328

約数和(自身を除く): 32575818

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 121, 165, 242, 330, 363, 605, 726, 1210, 1815, 3630, 5477, 10954, 16431, 27385, 32862, 54770, 60247, 82155, 120494, 164310, 180741, 301235, 361482, 602470, 662717, 903705, 1325434, 1807410, 1988151, 3313585, 3976302, 6627170, 9940755, 19881510]

約数ペア:

[(1, 19881510), (2, 9940755), (3, 6627170), (5, 3976302), (6, 3313585), (10, 1988151), (11, 1807410), (15, 1325434), (22, 903705), (30, 662717), (33, 602470), (55, 361482), (66, 301235), (110, 180741), (121, 164310), (165, 120494), (242, 82155), (330, 60247), (363, 54770), (605, 32862), (726, 27385), (1210, 16431), (1815, 10954), (3630, 5477)]