221874191

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{811}}^1$

素因数の和:876

約数の個数: 48

約数和(自身を含む): 311028480

約数和(自身を除く): 89154289

約数列:

[1, 7, 11, 17, 19, 77, 119, 121, 133, 187, 209, 323, 811, 847, 1309, 1463, 2057, 2261, 2299, 3553, 5677, 8921, 13787, 14399, 15409, 16093, 24871, 39083, 62447, 96509, 98131, 107863, 151657, 169499, 261953, 273581, 686917, 1061599, 1186493, 1668227, 1833671, 1864489, 2881483, 11677589, 13051423, 20170381, 31696313, 221874191]

約数ペア:

[(1, 221874191), (7, 31696313), (11, 20170381), (17, 13051423), (19, 11677589), (77, 2881483), (119, 1864489), (121, 1833671), (133, 1668227), (187, 1186493), (209, 1061599), (323, 686917), (811, 273581), (847, 261953), (1309, 169499), (1463, 151657), (2057, 107863), (2261, 98131), (2299, 96509), (3553, 62447), (5677, 39083), (8921, 24871), (13787, 16093), (14399, 15409)]