19980814

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2269}}^1$

素因数の和:2332

約数の個数: 32

約数和(自身を含む): 37264320

約数和(自身を除く): 17283506

約数列:

[1, 2, 7, 14, 17, 34, 37, 74, 119, 238, 259, 518, 629, 1258, 2269, 4403, 4538, 8806, 15883, 31766, 38573, 77146, 83953, 167906, 270011, 540022, 587671, 1175342, 1427201, 2854402, 9990407, 19980814]

約数ペア:

[(1, 19980814), (2, 9990407), (7, 2854402), (14, 1427201), (17, 1175342), (34, 587671), (37, 540022), (74, 270011), (119, 167906), (238, 83953), (259, 77146), (518, 38573), (629, 31766), (1258, 15883), (2269, 8806), (4403, 4538)]