21342512

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:437

約数の個数: 40

約数和(自身を含む): 42800832

約数和(自身を除く): 21458320

約数列:

[1, 2, 4, 8, 16, 47, 94, 101, 188, 202, 281, 376, 404, 562, 752, 808, 1124, 1616, 2248, 4496, 4747, 9494, 13207, 18988, 26414, 28381, 37976, 52828, 56762, 75952, 105656, 113524, 211312, 227048, 454096, 1333907, 2667814, 5335628, 10671256, 21342512]

約数ペア:

[(1, 21342512), (2, 10671256), (4, 5335628), (8, 2667814), (16, 1333907), (47, 454096), (94, 227048), (101, 211312), (188, 113524), (202, 105656), (281, 75952), (376, 56762), (404, 52828), (562, 37976), (752, 28381), (808, 26414), (1124, 18988), (1616, 13207), (2248, 9494), (4496, 4747)]