215460718

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1\times {\mathrm{509}}^1$

素因数の和:864

約数の個数: 32

約数和(自身を含む): 359562240

約数和(自身を除く): 144101522

約数列:

[1, 2, 11, 22, 71, 142, 271, 509, 542, 781, 1018, 1562, 2981, 5599, 5962, 11198, 19241, 36139, 38482, 72278, 137939, 211651, 275878, 397529, 423302, 795058, 1517329, 3034658, 9793669, 19587338, 107730359, 215460718]

約数ペア:

[(1, 215460718), (2, 107730359), (11, 19587338), (22, 9793669), (71, 3034658), (142, 1517329), (271, 795058), (509, 423302), (542, 397529), (781, 275878), (1018, 211651), (1562, 137939), (2981, 72278), (5599, 38482), (5962, 36139), (11198, 19241)]