18998708

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:324

約数の個数: 36

約数和(自身を含む): 35844480

約数和(自身を除く): 16845772

約数列:

[1, 2, 4, 19, 38, 59, 76, 118, 223, 236, 361, 446, 722, 892, 1121, 1444, 2242, 4237, 4484, 8474, 13157, 16948, 21299, 26314, 42598, 52628, 80503, 85196, 161006, 249983, 322012, 499966, 999932, 4749677, 9499354, 18998708]

約数ペア:

[(1, 18998708), (2, 9499354), (4, 4749677), (19, 999932), (38, 499966), (59, 322012), (76, 249983), (118, 161006), (223, 85196), (236, 80503), (361, 52628), (446, 42598), (722, 26314), (892, 21299), (1121, 16948), (1444, 13157), (2242, 8474), (4237, 4484)]