71715861

素因数分解:

$3^5\times 7^2\times {\mathrm{19}}^1\times {\mathrm{317}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 131957280

約数和(自身を除く): 60241419

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 63, 81, 133, 147, 171, 189, 243, 317, 399, 441, 513, 567, 931, 951, 1197, 1323, 1539, 1701, 2219, 2793, 2853, 3591, 3969, 4617, 6023, 6657, 8379, 8559, 10773, 11907, 15533, 18069, 19971, 25137, 25677, 32319, 42161, 46599, 54207, 59913, 75411, 77031, 126483, 139797, 162621, 179739, 226233, 295127, 379449, 419391, 487863, 539217, 885381, 1138347, 1258173, 1463589, 2656143, 3415041, 3774519, 7968429, 10245123, 23905287, 71715861]

約数ペア:

[(1, 71715861), (3, 23905287), (7, 10245123), (9, 7968429), (19, 3774519), (21, 3415041), (27, 2656143), (49, 1463589), (57, 1258173), (63, 1138347), (81, 885381), (133, 539217), (147, 487863), (171, 419391), (189, 379449), (243, 295127), (317, 226233), (399, 179739), (441, 162621), (513, 139797), (567, 126483), (931, 77031), (951, 75411), (1197, 59913), (1323, 54207), (1539, 46599), (1701, 42161), (2219, 32319), (2793, 25677), (2853, 25137), (3591, 19971), (3969, 18069), (4617, 15533), (6023, 11907), (6657, 10773), (8379, 8559)]