18533812

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:432

約数の個数: 36

約数和(自身を含む): 36029700

約数和(自身を除く): 17495888

約数列:

[1, 2, 4, 11, 22, 44, 121, 149, 242, 257, 298, 484, 514, 596, 1028, 1639, 2827, 3278, 5654, 6556, 11308, 18029, 31097, 36058, 38293, 62194, 72116, 76586, 124388, 153172, 421223, 842446, 1684892, 4633453, 9266906, 18533812]

約数ペア:

[(1, 18533812), (2, 9266906), (4, 4633453), (11, 1684892), (22, 842446), (44, 421223), (121, 153172), (149, 124388), (242, 76586), (257, 72116), (298, 62194), (484, 38293), (514, 36058), (596, 31097), (1028, 18029), (1639, 11308), (2827, 6556), (3278, 5654)]