21147532

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{313}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 45015040

約数和(自身を除く): 23867508

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 127, 133, 254, 266, 313, 508, 532, 626, 889, 1252, 1778, 2191, 2413, 3556, 4382, 4826, 5947, 8764, 9652, 11894, 16891, 23788, 33782, 39751, 41629, 67564, 79502, 83258, 159004, 166516, 278257, 556514, 755269, 1113028, 1510538, 3021076, 5286883, 10573766, 21147532]

約数ペア:

[(1, 21147532), (2, 10573766), (4, 5286883), (7, 3021076), (14, 1510538), (19, 1113028), (28, 755269), (38, 556514), (76, 278257), (127, 166516), (133, 159004), (254, 83258), (266, 79502), (313, 67564), (508, 41629), (532, 39751), (626, 33782), (889, 23788), (1252, 16891), (1778, 11894), (2191, 9652), (2413, 8764), (3556, 5947), (4382, 4826)]