18513896

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{421}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 36460800

約数和(自身を除く): 17946904

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 239, 421, 478, 842, 956, 1684, 1912, 3368, 5497, 9683, 10994, 19366, 21988, 38732, 43976, 77464, 100619, 201238, 402476, 804952, 2314237, 4628474, 9256948, 18513896]

約数ペア:

[(1, 18513896), (2, 9256948), (4, 4628474), (8, 2314237), (23, 804952), (46, 402476), (92, 201238), (184, 100619), (239, 77464), (421, 43976), (478, 38732), (842, 21988), (956, 19366), (1684, 10994), (1912, 9683), (3368, 5497)]