21179392

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:113

約数の個数: 88

約数和(自身を含む): 47916176

約数和(自身を除く): 26736784

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 37, 43, 52, 64, 74, 86, 104, 128, 148, 172, 208, 256, 296, 344, 416, 481, 512, 559, 592, 688, 832, 962, 1024, 1118, 1184, 1376, 1591, 1664, 1924, 2236, 2368, 2752, 3182, 3328, 3848, 4472, 4736, 5504, 6364, 6656, 7696, 8944, 9472, 11008, 12728, 13312, 15392, 17888, 18944, 20683, 22016, 25456, 30784, 35776, 37888, 41366, 44032, 50912, 61568, 71552, 82732, 101824, 123136, 143104, 165464, 203648, 246272, 286208, 330928, 407296, 492544, 572416, 661856, 814592, 1323712, 1629184, 2647424, 5294848, 10589696, 21179392]

約数ペア:

[(1, 21179392), (2, 10589696), (4, 5294848), (8, 2647424), (13, 1629184), (16, 1323712), (26, 814592), (32, 661856), (37, 572416), (43, 492544), (52, 407296), (64, 330928), (74, 286208), (86, 246272), (104, 203648), (128, 165464), (148, 143104), (172, 123136), (208, 101824), (256, 82732), (296, 71552), (344, 61568), (416, 50912), (481, 44032), (512, 41366), (559, 37888), (592, 35776), (688, 30784), (832, 25456), (962, 22016), (1024, 20683), (1118, 18944), (1184, 17888), (1376, 15392), (1591, 13312), (1664, 12728), (1924, 11008), (2236, 9472), (2368, 8944), (2752, 7696), (3182, 6656), (3328, 6364), (3848, 5504), (4472, 4736)]