21008556

素因数分解:

$2^2\times 3^2\times {\mathrm{601}}^1\times {\mathrm{971}}^1$

素因数の和:1582

約数の個数: 36

約数和(自身を含む): 53248104

約数和(自身を除く): 32239548

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 601, 971, 1202, 1803, 1942, 2404, 2913, 3606, 3884, 5409, 5826, 7212, 8739, 10818, 11652, 17478, 21636, 34956, 583571, 1167142, 1750713, 2334284, 3501426, 5252139, 7002852, 10504278, 21008556]

約数ペア:

[(1, 21008556), (2, 10504278), (3, 7002852), (4, 5252139), (6, 3501426), (9, 2334284), (12, 1750713), (18, 1167142), (36, 583571), (601, 34956), (971, 21636), (1202, 17478), (1803, 11652), (1942, 10818), (2404, 8739), (2913, 7212), (3606, 5826), (3884, 5409)]