21045168

素因数分解:

$2^4\times 3^2\times {\mathrm{101}}^1\times {\mathrm{1447}}^1$

素因数の和:1562

約数の個数: 60

約数和(自身を含む): 59521488

約数和(自身を除く): 38476320

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 101, 144, 202, 303, 404, 606, 808, 909, 1212, 1447, 1616, 1818, 2424, 2894, 3636, 4341, 4848, 5788, 7272, 8682, 11576, 13023, 14544, 17364, 23152, 26046, 34728, 52092, 69456, 104184, 146147, 208368, 292294, 438441, 584588, 876882, 1169176, 1315323, 1753764, 2338352, 2630646, 3507528, 5261292, 7015056, 10522584, 21045168]

約数ペア:

[(1, 21045168), (2, 10522584), (3, 7015056), (4, 5261292), (6, 3507528), (8, 2630646), (9, 2338352), (12, 1753764), (16, 1315323), (18, 1169176), (24, 876882), (36, 584588), (48, 438441), (72, 292294), (101, 208368), (144, 146147), (202, 104184), (303, 69456), (404, 52092), (606, 34728), (808, 26046), (909, 23152), (1212, 17364), (1447, 14544), (1616, 13023), (1818, 11576), (2424, 8682), (2894, 7272), (3636, 5788), (4341, 4848)]