20811726

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:222

約数の個数: 96

約数和(自身を含む): 53114880

約数和(自身を除く): 32303154

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 31, 38, 39, 57, 62, 78, 93, 114, 117, 151, 171, 186, 234, 247, 279, 302, 342, 403, 453, 494, 558, 589, 741, 806, 906, 1178, 1209, 1359, 1482, 1767, 1963, 2223, 2418, 2718, 2869, 3534, 3627, 3926, 4446, 4681, 5301, 5738, 5889, 7254, 7657, 8607, 9362, 10602, 11778, 14043, 15314, 17214, 17667, 22971, 25821, 28086, 35334, 37297, 42129, 45942, 51642, 60853, 68913, 74594, 84258, 88939, 111891, 121706, 137826, 177878, 182559, 223782, 266817, 335673, 365118, 533634, 547677, 671346, 800451, 1095354, 1156207, 1600902, 2312414, 3468621, 6937242, 10405863, 20811726]

約数ペア:

[(1, 20811726), (2, 10405863), (3, 6937242), (6, 3468621), (9, 2312414), (13, 1600902), (18, 1156207), (19, 1095354), (26, 800451), (31, 671346), (38, 547677), (39, 533634), (57, 365118), (62, 335673), (78, 266817), (93, 223782), (114, 182559), (117, 177878), (151, 137826), (171, 121706), (186, 111891), (234, 88939), (247, 84258), (279, 74594), (302, 68913), (342, 60853), (403, 51642), (453, 45942), (494, 42129), (558, 37297), (589, 35334), (741, 28086), (806, 25821), (906, 22971), (1178, 17667), (1209, 17214), (1359, 15314), (1482, 14043), (1767, 11778), (1963, 10602), (2223, 9362), (2418, 8607), (2718, 7657), (2869, 7254), (3534, 5889), (3627, 5738), (3926, 5301), (4446, 4681)]