20512674903

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1279}}^1\times {\mathrm{20641}}^1$

素因数の和:21967

約数の個数: 32

約数和(自身を含む): 32128860160

約数和(自身を除く): 11616185257

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 1279, 3837, 8953, 20641, 26859, 47323, 61923, 141969, 144487, 331261, 433461, 763717, 993783, 2291151, 5346019, 16038057, 26399839, 79199517, 184798873, 554396619, 976794043, 2930382129, 6837558301, 20512674903]

約数ペア:

[(1, 20512674903), (3, 6837558301), (7, 2930382129), (21, 976794043), (37, 554396619), (111, 184798873), (259, 79199517), (777, 26399839), (1279, 16038057), (3837, 5346019), (8953, 2291151), (20641, 993783), (26859, 763717), (47323, 433461), (61923, 331261), (141969, 144487)]