21012

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1$

素因数の和:127

約数の個数: 24

約数和(自身を含む): 52416

約数和(自身を除く): 31404

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 103, 204, 206, 309, 412, 618, 1236, 1751, 3502, 5253, 7004, 10506, 21012]

約数ペア:

[(1, 21012), (2, 10506), (3, 7004), (4, 5253), (6, 3502), (12, 1751), (17, 1236), (34, 618), (51, 412), (68, 309), (102, 206), (103, 204)]