19945156

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{29}}^2$

素因数の和:98

約数の個数: 81

約数和(自身を含む): 46221357

約数和(自身を除く): 26276201

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 29, 44, 49, 58, 77, 98, 116, 121, 154, 196, 203, 242, 308, 319, 406, 484, 539, 638, 812, 841, 847, 1078, 1276, 1421, 1682, 1694, 2156, 2233, 2842, 3364, 3388, 3509, 4466, 5684, 5887, 5929, 7018, 8932, 9251, 11774, 11858, 14036, 15631, 18502, 23548, 23716, 24563, 31262, 37004, 41209, 49126, 62524, 64757, 82418, 98252, 101761, 129514, 164836, 171941, 203522, 259028, 343882, 407044, 453299, 687764, 712327, 906598, 1424654, 1813196, 2849308, 4986289, 9972578, 19945156]

約数ペア:

[(1, 19945156), (2, 9972578), (4, 4986289), (7, 2849308), (11, 1813196), (14, 1424654), (22, 906598), (28, 712327), (29, 687764), (44, 453299), (49, 407044), (58, 343882), (77, 259028), (98, 203522), (116, 171941), (121, 164836), (154, 129514), (196, 101761), (203, 98252), (242, 82418), (308, 64757), (319, 62524), (406, 49126), (484, 41209), (539, 37004), (638, 31262), (812, 24563), (841, 23716), (847, 23548), (1078, 18502), (1276, 15631), (1421, 14036), (1682, 11858), (1694, 11774), (2156, 9251), (2233, 8932), (2842, 7018), (3364, 5929), (3388, 5887), (3509, 5684)]