71775571

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 90021888

約数和(自身を除く): 18246317

約数列:

[1, 7, 23, 31, 73, 161, 197, 217, 511, 713, 1379, 1679, 2263, 4531, 4991, 6107, 11753, 14381, 15841, 31717, 42749, 52049, 100667, 140461, 330763, 364343, 445811, 983227, 2315341, 3120677, 10253653, 71775571]

約数ペア:

[(1, 71775571), (7, 10253653), (23, 3120677), (31, 2315341), (73, 983227), (161, 445811), (197, 364343), (217, 330763), (511, 140461), (713, 100667), (1379, 52049), (1679, 42749), (2263, 31717), (4531, 15841), (4991, 14381), (6107, 11753)]