21513708

素因数分解:

$2^2\times 3^3\times {\mathrm{29}}^1\times {\mathrm{6869}}^1$

素因数の和:6911

約数の個数: 48

約数和(自身を含む): 57708000

約数和(自身を除く): 36194292

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 29, 36, 54, 58, 87, 108, 116, 174, 261, 348, 522, 783, 1044, 1566, 3132, 6869, 13738, 20607, 27476, 41214, 61821, 82428, 123642, 185463, 199201, 247284, 370926, 398402, 597603, 741852, 796804, 1195206, 1792809, 2390412, 3585618, 5378427, 7171236, 10756854, 21513708]

約数ペア:

[(1, 21513708), (2, 10756854), (3, 7171236), (4, 5378427), (6, 3585618), (9, 2390412), (12, 1792809), (18, 1195206), (27, 796804), (29, 741852), (36, 597603), (54, 398402), (58, 370926), (87, 247284), (108, 199201), (116, 185463), (174, 123642), (261, 82428), (348, 61821), (522, 41214), (783, 27476), (1044, 20607), (1566, 13738), (3132, 6869)]