18028904

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{421}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 34865640

約数和(自身を除く): 16836736

約数列:

[1, 2, 4, 8, 53, 101, 106, 202, 212, 404, 421, 424, 808, 842, 1684, 3368, 5353, 10706, 21412, 22313, 42521, 42824, 44626, 85042, 89252, 170084, 178504, 340168, 2253613, 4507226, 9014452, 18028904]

約数ペア:

[(1, 18028904), (2, 9014452), (4, 4507226), (8, 2253613), (53, 340168), (101, 178504), (106, 170084), (202, 89252), (212, 85042), (404, 44626), (421, 42824), (424, 42521), (808, 22313), (842, 21412), (1684, 10706), (3368, 5353)]