21284384

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:294

約数の個数: 72

約数和(自身を含む): 48263040

約数和(自身を除く): 26978656

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 44, 46, 88, 92, 121, 176, 184, 239, 242, 253, 352, 368, 478, 484, 506, 736, 956, 968, 1012, 1912, 1936, 2024, 2629, 2783, 3824, 3872, 4048, 5258, 5497, 5566, 7648, 8096, 10516, 10994, 11132, 21032, 21988, 22264, 28919, 42064, 43976, 44528, 57838, 60467, 84128, 87952, 89056, 115676, 120934, 175904, 231352, 241868, 462704, 483736, 665137, 925408, 967472, 1330274, 1934944, 2660548, 5321096, 10642192, 21284384]

約数ペア:

[(1, 21284384), (2, 10642192), (4, 5321096), (8, 2660548), (11, 1934944), (16, 1330274), (22, 967472), (23, 925408), (32, 665137), (44, 483736), (46, 462704), (88, 241868), (92, 231352), (121, 175904), (176, 120934), (184, 115676), (239, 89056), (242, 87952), (253, 84128), (352, 60467), (368, 57838), (478, 44528), (484, 43976), (506, 42064), (736, 28919), (956, 22264), (968, 21988), (1012, 21032), (1912, 11132), (1936, 10994), (2024, 10516), (2629, 8096), (2783, 7648), (3824, 5566), (3872, 5497), (4048, 5258)]