19926388

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{223}}^1\times {\mathrm{251}}^1$

素因数の和:567

約数の個数: 24

約数和(自身を含む): 35562240

約数和(自身を除く): 15635852

約数列:

[1, 2, 4, 89, 178, 223, 251, 356, 446, 502, 892, 1004, 19847, 22339, 39694, 44678, 55973, 79388, 89356, 111946, 223892, 4981597, 9963194, 19926388]

約数ペア:

[(1, 19926388), (2, 9963194), (4, 4981597), (89, 223892), (178, 111946), (223, 89356), (251, 79388), (356, 55973), (446, 44678), (502, 39694), (892, 22339), (1004, 19847)]