21172428

素因数分解:

$2^2\times 3^4\times {\mathrm{101}}^1\times {\mathrm{647}}^1$

素因数の和:764

約数の個数: 60

約数和(自身を含む): 55983312

約数和(自身を除く): 34810884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 101, 108, 162, 202, 303, 324, 404, 606, 647, 909, 1212, 1294, 1818, 1941, 2588, 2727, 3636, 3882, 5454, 5823, 7764, 8181, 10908, 11646, 16362, 17469, 23292, 32724, 34938, 52407, 65347, 69876, 104814, 130694, 196041, 209628, 261388, 392082, 588123, 784164, 1176246, 1764369, 2352492, 3528738, 5293107, 7057476, 10586214, 21172428]

約数ペア:

[(1, 21172428), (2, 10586214), (3, 7057476), (4, 5293107), (6, 3528738), (9, 2352492), (12, 1764369), (18, 1176246), (27, 784164), (36, 588123), (54, 392082), (81, 261388), (101, 209628), (108, 196041), (162, 130694), (202, 104814), (303, 69876), (324, 65347), (404, 52407), (606, 34938), (647, 32724), (909, 23292), (1212, 17469), (1294, 16362), (1818, 11646), (1941, 10908), (2588, 8181), (2727, 7764), (3636, 5823), (3882, 5454)]