2158207868

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{1987}}^1\times {\mathrm{15973}}^1$

素因数の和:17981

約数の個数: 24

約数和(自身を含む): 4001295312

約数和(自身を除く): 1843087444

約数列:

[1, 2, 4, 17, 34, 68, 1987, 3974, 7948, 15973, 31946, 33779, 63892, 67558, 135116, 271541, 543082, 1086164, 31738351, 63476702, 126953404, 539551967, 1079103934, 2158207868]

約数ペア:

[(1, 2158207868), (2, 1079103934), (4, 539551967), (17, 126953404), (34, 63476702), (68, 31738351), (1987, 1086164), (3974, 543082), (7948, 271541), (15973, 135116), (31946, 67558), (33779, 63892)]