21292038418

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{307}}^1\times {\mathrm{967}}^1$

素因数の和:1439

約数の個数: 64

約数和(自身を含む): 37780807680

約数和(自身を除く): 16488769262

約数列:

[1, 2, 7, 14, 47, 94, 109, 218, 307, 329, 614, 658, 763, 967, 1526, 1934, 2149, 4298, 5123, 6769, 10246, 13538, 14429, 28858, 33463, 35861, 45449, 66926, 71722, 90898, 101003, 105403, 202006, 210806, 234241, 296869, 318143, 468482, 593738, 636286, 737821, 1475642, 1572761, 2078083, 3145522, 4156166, 4953941, 9907882, 11009327, 13952843, 22018654, 27905686, 32358721, 34677587, 64717442, 69355174, 97669901, 195339802, 226511047, 453022094, 1520859887, 3041719774, 10646019209, 21292038418]

約数ペア:

[(1, 21292038418), (2, 10646019209), (7, 3041719774), (14, 1520859887), (47, 453022094), (94, 226511047), (109, 195339802), (218, 97669901), (307, 69355174), (329, 64717442), (614, 34677587), (658, 32358721), (763, 27905686), (967, 22018654), (1526, 13952843), (1934, 11009327), (2149, 9907882), (4298, 4953941), (5123, 4156166), (6769, 3145522), (10246, 2078083), (13538, 1572761), (14429, 1475642), (28858, 737821), (33463, 636286), (35861, 593738), (45449, 468482), (66926, 318143), (71722, 296869), (90898, 234241), (101003, 210806), (105403, 202006)]