21131310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{9649}}^1$

素因数の和:9732

約数の個数: 32

約数和(自身を含む): 51415200

約数和(自身を除く): 30283890

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 73, 146, 219, 365, 438, 730, 1095, 2190, 9649, 19298, 28947, 48245, 57894, 96490, 144735, 289470, 704377, 1408754, 2113131, 3521885, 4226262, 7043770, 10565655, 21131310]

約数ペア:

[(1, 21131310), (2, 10565655), (3, 7043770), (5, 4226262), (6, 3521885), (10, 2113131), (15, 1408754), (30, 704377), (73, 289470), (146, 144735), (219, 96490), (365, 57894), (438, 48245), (730, 28947), (1095, 19298), (2190, 9649)]