19987924

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23909}}^1$

素因数の和:23943

約数の個数: 24

約数和(自身を含む): 40168800

約数和(自身を除く): 20180876

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 23909, 47818, 95636, 262999, 454271, 525998, 908542, 1051996, 1817084, 4996981, 9993962, 19987924]

約数ペア:

[(1, 19987924), (2, 9993962), (4, 4996981), (11, 1817084), (19, 1051996), (22, 908542), (38, 525998), (44, 454271), (76, 262999), (209, 95636), (418, 47818), (836, 23909)]