20686536

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:220

約数の個数: 128

約数和(自身を含む): 63504000

約数和(自身を除く): 42817464

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 53, 54, 72, 78, 104, 106, 108, 117, 139, 156, 159, 212, 216, 234, 278, 312, 318, 351, 417, 424, 468, 477, 556, 636, 689, 702, 834, 936, 954, 1112, 1251, 1272, 1378, 1404, 1431, 1668, 1807, 1908, 2067, 2502, 2756, 2808, 2862, 3336, 3614, 3753, 3816, 4134, 5004, 5421, 5512, 5724, 6201, 7228, 7367, 7506, 8268, 10008, 10842, 11448, 12402, 14456, 14734, 15012, 16263, 16536, 18603, 21684, 22101, 24804, 29468, 30024, 32526, 37206, 43368, 44202, 48789, 49608, 58936, 65052, 66303, 74412, 88404, 95771, 97578, 130104, 132606, 148824, 176808, 191542, 195156, 198909, 265212, 287313, 383084, 390312, 397818, 530424, 574626, 766168, 795636, 861939, 1149252, 1591272, 1723878, 2298504, 2585817, 3447756, 5171634, 6895512, 10343268, 20686536]

約数ペア:

[(1, 20686536), (2, 10343268), (3, 6895512), (4, 5171634), (6, 3447756), (8, 2585817), (9, 2298504), (12, 1723878), (13, 1591272), (18, 1149252), (24, 861939), (26, 795636), (27, 766168), (36, 574626), (39, 530424), (52, 397818), (53, 390312), (54, 383084), (72, 287313), (78, 265212), (104, 198909), (106, 195156), (108, 191542), (117, 176808), (139, 148824), (156, 132606), (159, 130104), (212, 97578), (216, 95771), (234, 88404), (278, 74412), (312, 66303), (318, 65052), (351, 58936), (417, 49608), (424, 48789), (468, 44202), (477, 43368), (556, 37206), (636, 32526), (689, 30024), (702, 29468), (834, 24804), (936, 22101), (954, 21684), (1112, 18603), (1251, 16536), (1272, 16263), (1378, 15012), (1404, 14734), (1431, 14456), (1668, 12402), (1807, 11448), (1908, 10842), (2067, 10008), (2502, 8268), (2756, 7506), (2808, 7367), (2862, 7228), (3336, 6201), (3614, 5724), (3753, 5512), (3816, 5421), (4134, 5004)]