19811484795

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1\times {\mathrm{51659}}^1$

素因数の和:52395

約数の個数: 32

約数和(自身を含む): 32602832640

約数和(自身を除く): 12791347845

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 691, 2073, 3455, 10365, 25567, 51659, 76701, 127835, 154977, 258295, 383505, 774885, 1911383, 5734149, 9556915, 28670745, 35696369, 107089107, 178481845, 535445535, 1320765653, 3962296959, 6603828265, 19811484795]

約数ペア:

[(1, 19811484795), (3, 6603828265), (5, 3962296959), (15, 1320765653), (37, 535445535), (111, 178481845), (185, 107089107), (555, 35696369), (691, 28670745), (2073, 9556915), (3455, 5734149), (10365, 1911383), (25567, 774885), (51659, 383505), (76701, 258295), (127835, 154977)]