20912856

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{51257}}^1$

素因数の和:51283

約数の個数: 32

約数和(自身を含む): 55358640

約数和(自身を除く): 34445784

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408, 51257, 102514, 153771, 205028, 307542, 410056, 615084, 871369, 1230168, 1742738, 2614107, 3485476, 5228214, 6970952, 10456428, 20912856]

約数ペア:

[(1, 20912856), (2, 10456428), (3, 6970952), (4, 5228214), (6, 3485476), (8, 2614107), (12, 1742738), (17, 1230168), (24, 871369), (34, 615084), (51, 410056), (68, 307542), (102, 205028), (136, 153771), (204, 102514), (408, 51257)]