21685047952

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{163}}^1\times {\mathrm{28771}}^1$

素因数の和:28976

約数の個数: 60

約数和(自身を含む): 44906992336

約数和(自身を除く): 23221944384

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 163, 272, 289, 326, 578, 652, 1156, 1304, 2312, 2608, 2771, 4624, 5542, 11084, 22168, 28771, 44336, 47107, 57542, 94214, 115084, 188428, 230168, 376856, 460336, 489107, 753712, 978214, 1956428, 3912856, 4689673, 7825712, 8314819, 9379346, 16629638, 18758692, 33259276, 37517384, 66518552, 75034768, 79724441, 133037104, 159448882, 318897764, 637795528, 1275591056, 1355315497, 2710630994, 5421261988, 10842523976, 21685047952]

約数ペア:

[(1, 21685047952), (2, 10842523976), (4, 5421261988), (8, 2710630994), (16, 1355315497), (17, 1275591056), (34, 637795528), (68, 318897764), (136, 159448882), (163, 133037104), (272, 79724441), (289, 75034768), (326, 66518552), (578, 37517384), (652, 33259276), (1156, 18758692), (1304, 16629638), (2312, 9379346), (2608, 8314819), (2771, 7825712), (4624, 4689673), (5542, 3912856), (11084, 1956428), (22168, 978214), (28771, 753712), (44336, 489107), (47107, 460336), (57542, 376856), (94214, 230168), (115084, 188428)]