21505748

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{28751}}^1$

素因数の和:28783

約数の個数: 24

約数和(自身を含む): 43473024

約数和(自身を除く): 21967276

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748, 28751, 57502, 115004, 316261, 488767, 632522, 977534, 1265044, 1955068, 5376437, 10752874, 21505748]

約数ペア:

[(1, 21505748), (2, 10752874), (4, 5376437), (11, 1955068), (17, 1265044), (22, 977534), (34, 632522), (44, 488767), (68, 316261), (187, 115004), (374, 57502), (748, 28751)]