20161621221

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{17299}}^1$

素因数の和:17478

約数の個数: 64

約数和(自身を含む): 34013184000

約数和(自身を除く): 13851562779

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 127, 133, 161, 381, 399, 437, 483, 889, 1311, 2413, 2667, 2921, 3059, 7239, 8763, 9177, 16891, 17299, 20447, 50673, 51897, 55499, 61341, 121093, 166497, 328681, 363279, 388493, 397877, 986043, 1165479, 1193631, 2196973, 2300767, 2785139, 6590919, 6902301, 7559663, 8355417, 15378811, 22678989, 41742487, 46136433, 50530379, 52917641, 125227461, 151591137, 158752923, 292197409, 353712653, 876592227, 960077201, 1061137959, 2880231603, 6720540407, 20161621221]

約数ペア:

[(1, 20161621221), (3, 6720540407), (7, 2880231603), (19, 1061137959), (21, 960077201), (23, 876592227), (57, 353712653), (69, 292197409), (127, 158752923), (133, 151591137), (161, 125227461), (381, 52917641), (399, 50530379), (437, 46136433), (483, 41742487), (889, 22678989), (1311, 15378811), (2413, 8355417), (2667, 7559663), (2921, 6902301), (3059, 6590919), (7239, 2785139), (8763, 2300767), (9177, 2196973), (16891, 1193631), (17299, 1165479), (20447, 986043), (50673, 397877), (51897, 388493), (55499, 363279), (61341, 328681), (121093, 166497)]