21705528

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{953}}^1$

素因数の和:1048

約数の個数: 64

約数和(自身を含む): 59300640

約数和(自身を除く): 37595112

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 73, 78, 104, 146, 156, 219, 292, 312, 438, 584, 876, 949, 953, 1752, 1898, 1906, 2847, 2859, 3796, 3812, 5694, 5718, 7592, 7624, 11388, 11436, 12389, 22776, 22872, 24778, 37167, 49556, 69569, 74334, 99112, 139138, 148668, 208707, 278276, 297336, 417414, 556552, 834828, 904397, 1669656, 1808794, 2713191, 3617588, 5426382, 7235176, 10852764, 21705528]

約数ペア:

[(1, 21705528), (2, 10852764), (3, 7235176), (4, 5426382), (6, 3617588), (8, 2713191), (12, 1808794), (13, 1669656), (24, 904397), (26, 834828), (39, 556552), (52, 417414), (73, 297336), (78, 278276), (104, 208707), (146, 148668), (156, 139138), (219, 99112), (292, 74334), (312, 69569), (438, 49556), (584, 37167), (876, 24778), (949, 22872), (953, 22776), (1752, 12389), (1898, 11436), (1906, 11388), (2847, 7624), (2859, 7592), (3796, 5718), (3812, 5694)]