20857402

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{389}}^1$

素因数の和:510

約数の個数: 32

約数和(自身を含む): 35380800

約数和(自身を除く): 14523398

約数列:

[1, 2, 17, 19, 34, 38, 83, 166, 323, 389, 646, 778, 1411, 1577, 2822, 3154, 6613, 7391, 13226, 14782, 26809, 32287, 53618, 64574, 125647, 251294, 548879, 613453, 1097758, 1226906, 10428701, 20857402]

約数ペア:

[(1, 20857402), (2, 10428701), (17, 1226906), (19, 1097758), (34, 613453), (38, 548879), (83, 251294), (166, 125647), (323, 64574), (389, 53618), (646, 32287), (778, 26809), (1411, 14782), (1577, 13226), (2822, 7391), (3154, 6613)]