20903778

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3253}}^1$

素因数の和:3288

約数の個数: 64

約数和(自身を含む): 56229120

約数和(自身を除く): 35325342

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 27, 34, 42, 51, 54, 63, 102, 119, 126, 153, 189, 238, 306, 357, 378, 459, 714, 918, 1071, 2142, 3213, 3253, 6426, 6506, 9759, 19518, 22771, 29277, 45542, 55301, 58554, 68313, 87831, 110602, 136626, 165903, 175662, 204939, 331806, 387107, 409878, 497709, 614817, 774214, 995418, 1161321, 1229634, 1493127, 2322642, 2986254, 3483963, 6967926, 10451889, 20903778]

約数ペア:

[(1, 20903778), (2, 10451889), (3, 6967926), (6, 3483963), (7, 2986254), (9, 2322642), (14, 1493127), (17, 1229634), (18, 1161321), (21, 995418), (27, 774214), (34, 614817), (42, 497709), (51, 409878), (54, 387107), (63, 331806), (102, 204939), (119, 175662), (126, 165903), (153, 136626), (189, 110602), (238, 87831), (306, 68313), (357, 58554), (378, 55301), (459, 45542), (714, 29277), (918, 22771), (1071, 19518), (2142, 9759), (3213, 6506), (3253, 6426)]