19758978

素因数分解:

$2^1\times 3^4\times {\mathrm{23}}^1\times {\mathrm{5303}}^1$

素因数の和:5340

約数の個数: 40

約数和(自身を含む): 46208448

約数和(自身を除く): 26449470

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 81, 138, 162, 207, 414, 621, 1242, 1863, 3726, 5303, 10606, 15909, 31818, 47727, 95454, 121969, 143181, 243938, 286362, 365907, 429543, 731814, 859086, 1097721, 2195442, 3293163, 6586326, 9879489, 19758978]

約数ペア:

[(1, 19758978), (2, 9879489), (3, 6586326), (6, 3293163), (9, 2195442), (18, 1097721), (23, 859086), (27, 731814), (46, 429543), (54, 365907), (69, 286362), (81, 243938), (138, 143181), (162, 121969), (207, 95454), (414, 47727), (621, 31818), (1242, 15909), (1863, 10606), (3726, 5303)]