21394456

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3433}}^1$

素因数の和:3499

約数の個数: 32

約数和(自身を含む): 43268400

約数和(自身を除く): 21873944

約数列:

[1, 2, 4, 8, 19, 38, 41, 76, 82, 152, 164, 328, 779, 1558, 3116, 3433, 6232, 6866, 13732, 27464, 65227, 130454, 140753, 260908, 281506, 521816, 563012, 1126024, 2674307, 5348614, 10697228, 21394456]

約数ペア:

[(1, 21394456), (2, 10697228), (4, 5348614), (8, 2674307), (19, 1126024), (38, 563012), (41, 521816), (76, 281506), (82, 260908), (152, 140753), (164, 130454), (328, 65227), (779, 27464), (1558, 13732), (3116, 6866), (3433, 6232)]