19711835

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1451}}^1$

素因数の和:1499

約数の個数: 32

約数和(自身を含む): 29272320

約数和(自身を除く): 9560485

約数列:

[1, 5, 11, 13, 19, 55, 65, 95, 143, 209, 247, 715, 1045, 1235, 1451, 2717, 7255, 13585, 15961, 18863, 27569, 79805, 94315, 137845, 207493, 303259, 358397, 1037465, 1516295, 1791985, 3942367, 19711835]

約数ペア:

[(1, 19711835), (5, 3942367), (11, 1791985), (13, 1516295), (19, 1037465), (55, 358397), (65, 303259), (95, 207493), (143, 137845), (209, 94315), (247, 79805), (715, 27569), (1045, 18863), (1235, 15961), (1451, 13585), (2717, 7255)]