21958112

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:192

約数の個数: 72

約数和(自身を含む): 48866328

約数和(自身を除く): 26908216

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 53, 88, 106, 107, 121, 176, 212, 214, 242, 352, 424, 428, 484, 583, 848, 856, 968, 1166, 1177, 1696, 1712, 1936, 2332, 2354, 3424, 3872, 4664, 4708, 5671, 6413, 9328, 9416, 11342, 12826, 12947, 18656, 18832, 22684, 25652, 25894, 37664, 45368, 51304, 51788, 62381, 90736, 102608, 103576, 124762, 181472, 205216, 207152, 249524, 414304, 499048, 686191, 998096, 1372382, 1996192, 2744764, 5489528, 10979056, 21958112]

約数ペア:

[(1, 21958112), (2, 10979056), (4, 5489528), (8, 2744764), (11, 1996192), (16, 1372382), (22, 998096), (32, 686191), (44, 499048), (53, 414304), (88, 249524), (106, 207152), (107, 205216), (121, 181472), (176, 124762), (212, 103576), (214, 102608), (242, 90736), (352, 62381), (424, 51788), (428, 51304), (484, 45368), (583, 37664), (848, 25894), (856, 25652), (968, 22684), (1166, 18832), (1177, 18656), (1696, 12947), (1712, 12826), (1936, 11342), (2332, 9416), (2354, 9328), (3424, 6413), (3872, 5671), (4664, 4708)]