21921364

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^3\times {\mathrm{47}}^1$

素因数の和:125

約数の個数: 48

約数和(自身を含む): 43787520

約数和(自身を除く): 21866156

約数列:

[1, 2, 4, 17, 19, 34, 38, 47, 68, 76, 94, 188, 323, 361, 646, 722, 799, 893, 1292, 1444, 1598, 1786, 3196, 3572, 6137, 6859, 12274, 13718, 15181, 16967, 24548, 27436, 30362, 33934, 60724, 67868, 116603, 233206, 288439, 322373, 466412, 576878, 644746, 1153756, 1289492, 5480341, 10960682, 21921364]

約数ペア:

[(1, 21921364), (2, 10960682), (4, 5480341), (17, 1289492), (19, 1153756), (34, 644746), (38, 576878), (47, 466412), (68, 322373), (76, 288439), (94, 233206), (188, 116603), (323, 67868), (361, 60724), (646, 33934), (722, 30362), (799, 27436), (893, 24548), (1292, 16967), (1444, 15181), (1598, 13718), (1786, 12274), (3196, 6859), (3572, 6137)]