19784284

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{3767}}^1$

素因数の和:3885

約数の個数: 24

約数和(自身を含む): 37664928

約数和(自身を除く): 17880644

約数列:

[1, 2, 4, 13, 26, 52, 101, 202, 404, 1313, 2626, 3767, 5252, 7534, 15068, 48971, 97942, 195884, 380467, 760934, 1521868, 4946071, 9892142, 19784284]

約数ペア:

[(1, 19784284), (2, 9892142), (4, 4946071), (13, 1521868), (26, 760934), (52, 380467), (101, 195884), (202, 97942), (404, 48971), (1313, 15068), (2626, 7534), (3767, 5252)]