21951756

素因数分解:

$2^2\times 3^3\times {\mathrm{439}}^1\times {\mathrm{463}}^1$

素因数の和:915

約数の個数: 48

約数和(自身を含む): 57164800

約数和(自身を除く): 35213044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 439, 463, 878, 926, 1317, 1389, 1756, 1852, 2634, 2778, 3951, 4167, 5268, 5556, 7902, 8334, 11853, 12501, 15804, 16668, 23706, 25002, 47412, 50004, 203257, 406514, 609771, 813028, 1219542, 1829313, 2439084, 3658626, 5487939, 7317252, 10975878, 21951756]

約数ペア:

[(1, 21951756), (2, 10975878), (3, 7317252), (4, 5487939), (6, 3658626), (9, 2439084), (12, 1829313), (18, 1219542), (27, 813028), (36, 609771), (54, 406514), (108, 203257), (439, 50004), (463, 47412), (878, 25002), (926, 23706), (1317, 16668), (1389, 15804), (1756, 12501), (1852, 11853), (2634, 8334), (2778, 7902), (3951, 5556), (4167, 5268)]