20558458

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:366

約数の個数: 32

約数和(自身を含む): 33882624

約数和(自身を除く): 13324166

約数列:

[1, 2, 23, 37, 46, 47, 74, 94, 257, 514, 851, 1081, 1702, 1739, 2162, 3478, 5911, 9509, 11822, 12079, 19018, 24158, 39997, 79994, 218707, 277817, 437414, 446923, 555634, 893846, 10279229, 20558458]

約数ペア:

[(1, 20558458), (2, 10279229), (23, 893846), (37, 555634), (46, 446923), (47, 437414), (74, 277817), (94, 218707), (257, 79994), (514, 39997), (851, 24158), (1081, 19018), (1702, 12079), (1739, 11822), (2162, 9509), (3478, 5911)]