20605158

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{19}}^2\times {\mathrm{151}}^1$

素因数の和:207

約数の個数: 96

約数和(自身を含む): 55595520

約数和(自身を除く): 34990362

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 27, 38, 42, 54, 57, 63, 114, 126, 133, 151, 171, 189, 266, 302, 342, 361, 378, 399, 453, 513, 722, 798, 906, 1026, 1057, 1083, 1197, 1359, 2114, 2166, 2394, 2527, 2718, 2869, 3171, 3249, 3591, 4077, 5054, 5738, 6342, 6498, 7182, 7581, 8154, 8607, 9513, 9747, 15162, 17214, 19026, 19494, 20083, 22743, 25821, 28539, 40166, 45486, 51642, 54511, 57078, 60249, 68229, 77463, 109022, 120498, 136458, 154926, 163533, 180747, 327066, 361494, 381577, 490599, 542241, 763154, 981198, 1084482, 1144731, 1471797, 2289462, 2943594, 3434193, 6868386, 10302579, 20605158]

約数ペア:

[(1, 20605158), (2, 10302579), (3, 6868386), (6, 3434193), (7, 2943594), (9, 2289462), (14, 1471797), (18, 1144731), (19, 1084482), (21, 981198), (27, 763154), (38, 542241), (42, 490599), (54, 381577), (57, 361494), (63, 327066), (114, 180747), (126, 163533), (133, 154926), (151, 136458), (171, 120498), (189, 109022), (266, 77463), (302, 68229), (342, 60249), (361, 57078), (378, 54511), (399, 51642), (453, 45486), (513, 40166), (722, 28539), (798, 25821), (906, 22743), (1026, 20083), (1057, 19494), (1083, 19026), (1197, 17214), (1359, 15162), (2114, 9747), (2166, 9513), (2394, 8607), (2527, 8154), (2718, 7581), (2869, 7182), (3171, 6498), (3249, 6342), (3591, 5738), (4077, 5054)]