21987331355

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2141}}^1\times {\mathrm{3061}}^1$

素因数の和:5279

約数の個数: 32

約数和(自身を含む): 29278501056

約数和(自身を除く): 7291169701

約数列:

[1, 5, 11, 55, 61, 305, 671, 2141, 3061, 3355, 10705, 15305, 23551, 33671, 117755, 130601, 168355, 186721, 653005, 933605, 1436611, 2053931, 6553601, 7183055, 10269655, 32768005, 72089611, 360448055, 399769661, 1998848305, 4397466271, 21987331355]

約数ペア:

[(1, 21987331355), (5, 4397466271), (11, 1998848305), (55, 399769661), (61, 360448055), (305, 72089611), (671, 32768005), (2141, 10269655), (3061, 7183055), (3355, 6553601), (10705, 2053931), (15305, 1436611), (23551, 933605), (33671, 653005), (117755, 186721), (130601, 168355)]