21900896

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{317}}^1$

素因数の和:471

約数の個数: 48

約数和(自身を含む): 46158336

約数和(自身を除く): 24257440

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 127, 136, 254, 272, 317, 508, 544, 634, 1016, 1268, 2032, 2159, 2536, 4064, 4318, 5072, 5389, 8636, 10144, 10778, 17272, 21556, 34544, 40259, 43112, 69088, 80518, 86224, 161036, 172448, 322072, 644144, 684403, 1288288, 1368806, 2737612, 5475224, 10950448, 21900896]

約数ペア:

[(1, 21900896), (2, 10950448), (4, 5475224), (8, 2737612), (16, 1368806), (17, 1288288), (32, 684403), (34, 644144), (68, 322072), (127, 172448), (136, 161036), (254, 86224), (272, 80518), (317, 69088), (508, 43112), (544, 40259), (634, 34544), (1016, 21556), (1268, 17272), (2032, 10778), (2159, 10144), (2536, 8636), (4064, 5389), (4318, 5072)]