21167989821385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1\times {\mathrm{1303}}^1\times {\mathrm{13789}}^1$

素因数の和:15830

約数の個数: 64

約数和(自身を含む): 28670180474880

約数和(自身を除く): 7502190653495

約数列:

[1, 5, 11, 31, 55, 155, 341, 691, 1303, 1705, 3455, 6515, 7601, 13789, 14333, 21421, 38005, 40393, 68945, 71665, 107105, 151679, 201965, 235631, 427459, 444323, 758395, 900373, 1178155, 2137295, 2221615, 4501865, 4702049, 9528199, 9904103, 17967067, 23510245, 27911563, 47640995, 49520515, 89835335, 104810189, 139557815, 197637737, 295374169, 307027193, 524050945, 556979077, 988188685, 1476870845, 1535135965, 2784895385, 3249115859, 6126769847, 12415243297, 16245579295, 30633849235, 62076216485, 136567676267, 384872542207, 682838381335, 1924362711035, 4233597964277, 21167989821385]

約数ペア:

[(1, 21167989821385), (5, 4233597964277), (11, 1924362711035), (31, 682838381335), (55, 384872542207), (155, 136567676267), (341, 62076216485), (691, 30633849235), (1303, 16245579295), (1705, 12415243297), (3455, 6126769847), (6515, 3249115859), (7601, 2784895385), (13789, 1535135965), (14333, 1476870845), (21421, 988188685), (38005, 556979077), (40393, 524050945), (68945, 307027193), (71665, 295374169), (107105, 197637737), (151679, 139557815), (201965, 104810189), (235631, 89835335), (427459, 49520515), (444323, 47640995), (758395, 27911563), (900373, 23510245), (1178155, 17967067), (2137295, 9904103), (2221615, 9528199), (4501865, 4702049)]