18438064

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1279}}^1$

素因数の和:1357

約数の個数: 40

約数和(自身を含む): 38568960

約数和(自身を除く): 20130896

約数列:

[1, 2, 4, 8, 16, 17, 34, 53, 68, 106, 136, 212, 272, 424, 848, 901, 1279, 1802, 2558, 3604, 5116, 7208, 10232, 14416, 20464, 21743, 43486, 67787, 86972, 135574, 173944, 271148, 347888, 542296, 1084592, 1152379, 2304758, 4609516, 9219032, 18438064]

約数ペア:

[(1, 18438064), (2, 9219032), (4, 4609516), (8, 2304758), (16, 1152379), (17, 1084592), (34, 542296), (53, 347888), (68, 271148), (106, 173944), (136, 135574), (212, 86972), (272, 67787), (424, 43486), (848, 21743), (901, 20464), (1279, 14416), (1802, 10232), (2558, 7208), (3604, 5116)]