21013428

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{103007}}^1$

素因数の和:103031

約数の個数: 24

約数和(自身を含む): 51916032

約数和(自身を除く): 30902604

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 103007, 206014, 309021, 412028, 618042, 1236084, 1751119, 3502238, 5253357, 7004476, 10506714, 21013428]

約数ペア:

[(1, 21013428), (2, 10506714), (3, 7004476), (4, 5253357), (6, 3502238), (12, 1751119), (17, 1236084), (34, 618042), (51, 412028), (68, 309021), (102, 206014), (204, 103007)]