21167295545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1\times {\mathrm{27551}}^1$

素因数の和:27857

約数の個数: 32

約数和(自身を含む): 28288189440

約数和(自身を除く): 7120893895

約数列:

[1, 5, 11, 55, 61, 229, 305, 671, 1145, 2519, 3355, 12595, 13969, 27551, 69845, 137755, 153659, 303061, 768295, 1515305, 1680611, 6309179, 8403055, 18486721, 31545895, 69400969, 92433605, 347004845, 384859919, 1924299595, 4233459109, 21167295545]

約数ペア:

[(1, 21167295545), (5, 4233459109), (11, 1924299595), (55, 384859919), (61, 347004845), (229, 92433605), (305, 69400969), (671, 31545895), (1145, 18486721), (2519, 8403055), (3355, 6309179), (12595, 1680611), (13969, 1515305), (27551, 768295), (69845, 303061), (137755, 153659)]