20177391381

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1\times {\mathrm{46187}}^1$

素因数の和:46561

約数の個数: 32

約数和(自身を含む): 31286642688

約数和(自身を除く): 11109251307

約数列:

[1, 3, 7, 21, 71, 213, 293, 497, 879, 1491, 2051, 6153, 20803, 46187, 62409, 138561, 145621, 323309, 436863, 969927, 3279277, 9837831, 13532791, 22954939, 40598373, 68864817, 94729537, 284188611, 960828161, 2882484483, 6725797127, 20177391381]

約数ペア:

[(1, 20177391381), (3, 6725797127), (7, 2882484483), (21, 960828161), (71, 284188611), (213, 94729537), (293, 68864817), (497, 40598373), (879, 22954939), (1491, 13532791), (2051, 9837831), (6153, 3279277), (20803, 969927), (46187, 436863), (62409, 323309), (138561, 145621)]