19689890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{9421}}^1$

素因数の和:9458

約数の個数: 32

約数和(自身を含む): 40703040

約数和(自身を除く): 21013150

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 9421, 18842, 47105, 94210, 103631, 178999, 207262, 357998, 518155, 894995, 1036310, 1789990, 1968989, 3937978, 9844945, 19689890]

約数ペア:

[(1, 19689890), (2, 9844945), (5, 3937978), (10, 1968989), (11, 1789990), (19, 1036310), (22, 894995), (38, 518155), (55, 357998), (95, 207262), (110, 178999), (190, 103631), (209, 94210), (418, 47105), (1045, 18842), (2090, 9421)]