18712112

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61553}}^1$

素因数の和:61580

約数の個数: 20

約数和(自身を含む): 38163480

約数和(自身を除く): 19451368

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 61553, 123106, 246212, 492424, 984848, 1169507, 2339014, 4678028, 9356056, 18712112]

約数ペア:

[(1, 18712112), (2, 9356056), (4, 4678028), (8, 2339014), (16, 1169507), (19, 984848), (38, 492424), (76, 246212), (152, 123106), (304, 61553)]