21078252

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{15013}}^1$

素因数の和:15039

約数の個数: 48

約数和(自身を含む): 58854880

約数和(自身を除く): 37776628

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 15013, 30026, 45039, 60052, 90078, 135117, 180156, 195169, 270234, 390338, 405351, 540468, 585507, 780676, 810702, 1171014, 1621404, 1756521, 2342028, 3513042, 5269563, 7026084, 10539126, 21078252]

約数ペア:

[(1, 21078252), (2, 10539126), (3, 7026084), (4, 5269563), (6, 3513042), (9, 2342028), (12, 1756521), (13, 1621404), (18, 1171014), (26, 810702), (27, 780676), (36, 585507), (39, 540468), (52, 405351), (54, 390338), (78, 270234), (108, 195169), (117, 180156), (156, 135117), (234, 90078), (351, 60052), (468, 45039), (702, 30026), (1404, 15013)]