19893784

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{337}}^1$

素因数の和:547

約数の個数: 32

約数和(自身を含む): 38450880

約数和(自身を除く): 18557096

約数列:

[1, 2, 4, 8, 47, 94, 157, 188, 314, 337, 376, 628, 674, 1256, 1348, 2696, 7379, 14758, 15839, 29516, 31678, 52909, 59032, 63356, 105818, 126712, 211636, 423272, 2486723, 4973446, 9946892, 19893784]

約数ペア:

[(1, 19893784), (2, 9946892), (4, 4973446), (8, 2486723), (47, 423272), (94, 211636), (157, 126712), (188, 105818), (314, 63356), (337, 59032), (376, 52909), (628, 31678), (674, 29516), (1256, 15839), (1348, 14758), (2696, 7379)]