19638784

素因数分解:

$2^9\times {\mathrm{11}}^2\times {\mathrm{317}}^1$

素因数の和:357

約数の個数: 60

約数和(自身を含む): 43266762

約数和(自身を除く): 23627978

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 121, 128, 176, 242, 256, 317, 352, 484, 512, 634, 704, 968, 1268, 1408, 1936, 2536, 2816, 3487, 3872, 5072, 5632, 6974, 7744, 10144, 13948, 15488, 20288, 27896, 30976, 38357, 40576, 55792, 61952, 76714, 81152, 111584, 153428, 162304, 223168, 306856, 446336, 613712, 892672, 1227424, 1785344, 2454848, 4909696, 9819392, 19638784]

約数ペア:

[(1, 19638784), (2, 9819392), (4, 4909696), (8, 2454848), (11, 1785344), (16, 1227424), (22, 892672), (32, 613712), (44, 446336), (64, 306856), (88, 223168), (121, 162304), (128, 153428), (176, 111584), (242, 81152), (256, 76714), (317, 61952), (352, 55792), (484, 40576), (512, 38357), (634, 30976), (704, 27896), (968, 20288), (1268, 15488), (1408, 13948), (1936, 10144), (2536, 7744), (2816, 6974), (3487, 5632), (3872, 5072)]