81399318

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{13553}}^1$

素因数の和:13589

約数の個数: 64

約数和(自身を含む): 218598912

約数和(自身を除く): 137199594

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 39, 42, 66, 77, 78, 91, 143, 154, 182, 231, 273, 286, 429, 462, 546, 858, 1001, 2002, 3003, 6006, 13553, 27106, 40659, 81318, 94871, 149083, 176189, 189742, 284613, 298166, 352378, 447249, 528567, 569226, 894498, 1043581, 1057134, 1233323, 1938079, 2087162, 2466646, 3130743, 3699969, 3876158, 5814237, 6261486, 7399938, 11628474, 13566553, 27133106, 40699659, 81399318]

約数ペア:

[(1, 81399318), (2, 40699659), (3, 27133106), (6, 13566553), (7, 11628474), (11, 7399938), (13, 6261486), (14, 5814237), (21, 3876158), (22, 3699969), (26, 3130743), (33, 2466646), (39, 2087162), (42, 1938079), (66, 1233323), (77, 1057134), (78, 1043581), (91, 894498), (143, 569226), (154, 528567), (182, 447249), (231, 352378), (273, 298166), (286, 284613), (429, 189742), (462, 176189), (546, 149083), (858, 94871), (1001, 81318), (2002, 40659), (3003, 27106), (6006, 13553)]