20940906

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:379

約数の個数: 64

約数和(自身を含む): 51287040

約数和(自身を除く): 30346134

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 102, 119, 139, 211, 238, 278, 357, 417, 422, 633, 714, 834, 973, 1266, 1477, 1946, 2363, 2919, 2954, 3587, 4431, 4726, 5838, 7089, 7174, 8862, 10761, 14178, 16541, 21522, 25109, 29329, 33082, 49623, 50218, 58658, 75327, 87987, 99246, 150654, 175974, 205303, 410606, 498593, 615909, 997186, 1231818, 1495779, 2991558, 3490151, 6980302, 10470453, 20940906]

約数ペア:

[(1, 20940906), (2, 10470453), (3, 6980302), (6, 3490151), (7, 2991558), (14, 1495779), (17, 1231818), (21, 997186), (34, 615909), (42, 498593), (51, 410606), (102, 205303), (119, 175974), (139, 150654), (211, 99246), (238, 87987), (278, 75327), (357, 58658), (417, 50218), (422, 49623), (633, 33082), (714, 29329), (834, 25109), (973, 21522), (1266, 16541), (1477, 14178), (1946, 10761), (2363, 8862), (2919, 7174), (2954, 7089), (3587, 5838), (4431, 4726)]