18991808

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1$

素因数の和:585

約数の個数: 56

約数和(自身を含む): 41970960

約数和(自身を除く): 22979152

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 53, 64, 88, 106, 176, 212, 352, 424, 509, 583, 704, 848, 1018, 1166, 1696, 2036, 2332, 3392, 4072, 4664, 5599, 8144, 9328, 11198, 16288, 18656, 22396, 26977, 32576, 37312, 44792, 53954, 89584, 107908, 179168, 215816, 296747, 358336, 431632, 593494, 863264, 1186988, 1726528, 2373976, 4747952, 9495904, 18991808]

約数ペア:

[(1, 18991808), (2, 9495904), (4, 4747952), (8, 2373976), (11, 1726528), (16, 1186988), (22, 863264), (32, 593494), (44, 431632), (53, 358336), (64, 296747), (88, 215816), (106, 179168), (176, 107908), (212, 89584), (352, 53954), (424, 44792), (509, 37312), (583, 32576), (704, 26977), (848, 22396), (1018, 18656), (1166, 16288), (1696, 11198), (2036, 9328), (2332, 8144), (3392, 5599), (4072, 4664)]