81879993

素因数分解:

$3^2\times {\mathrm{13}}^3\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:187

約数の個数: 48

約数和(自身を含む): 132546960

約数和(自身を除く): 50666967

約数列:

[1, 3, 9, 13, 39, 41, 101, 117, 123, 169, 303, 369, 507, 533, 909, 1313, 1521, 1599, 2197, 3939, 4141, 4797, 6591, 6929, 11817, 12423, 17069, 19773, 20787, 37269, 51207, 53833, 62361, 90077, 153621, 161499, 221897, 270231, 484497, 665691, 699829, 810693, 1997073, 2099487, 6298461, 9097777, 27293331, 81879993]

約数ペア:

[(1, 81879993), (3, 27293331), (9, 9097777), (13, 6298461), (39, 2099487), (41, 1997073), (101, 810693), (117, 699829), (123, 665691), (169, 484497), (303, 270231), (369, 221897), (507, 161499), (533, 153621), (909, 90077), (1313, 62361), (1521, 53833), (1599, 51207), (2197, 37269), (3939, 20787), (4141, 19773), (4797, 17069), (6591, 12423), (6929, 11817)]