18647618

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{269}}^1$

素因数の和:442

約数の個数: 32

約数和(自身を含む): 32192640

約数和(自身を除く): 13545022

約数列:

[1, 2, 11, 22, 23, 46, 137, 253, 269, 274, 506, 538, 1507, 2959, 3014, 3151, 5918, 6187, 6302, 12374, 34661, 36853, 68057, 69322, 73706, 136114, 405383, 810766, 847619, 1695238, 9323809, 18647618]

約数ペア:

[(1, 18647618), (2, 9323809), (11, 1695238), (22, 847619), (23, 810766), (46, 405383), (137, 136114), (253, 73706), (269, 69322), (274, 68057), (506, 36853), (538, 34661), (1507, 12374), (2959, 6302), (3014, 6187), (3151, 5918)]