19900474

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{587}}^1$

素因数の和:690

約数の個数: 32

約数和(自身を含む): 34546176

約数和(自身を除く): 14645702

約数列:

[1, 2, 11, 22, 23, 46, 67, 134, 253, 506, 587, 737, 1174, 1474, 1541, 3082, 6457, 12914, 13501, 16951, 27002, 33902, 39329, 78658, 148511, 297022, 432619, 865238, 904567, 1809134, 9950237, 19900474]

約数ペア:

[(1, 19900474), (2, 9950237), (11, 1809134), (22, 904567), (23, 865238), (46, 432619), (67, 297022), (134, 148511), (253, 78658), (506, 39329), (587, 33902), (737, 27002), (1174, 16951), (1474, 13501), (1541, 12914), (3082, 6457)]