21291512

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{773}}^1$

素因数の和:1103

約数の個数: 32

約数和(自身を含む): 43746480

約数和(自身を除く): 22454968

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 313, 626, 773, 1252, 1546, 2504, 3092, 3443, 6184, 6886, 8503, 13772, 17006, 27544, 34012, 68024, 241949, 483898, 967796, 1935592, 2661439, 5322878, 10645756, 21291512]

約数ペア:

[(1, 21291512), (2, 10645756), (4, 5322878), (8, 2661439), (11, 1935592), (22, 967796), (44, 483898), (88, 241949), (313, 68024), (626, 34012), (773, 27544), (1252, 17006), (1546, 13772), (2504, 8503), (3092, 6886), (3443, 6184)]