19770608

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8641}}^1$

素因数の和:8673

約数の個数: 40

約数和(自身を含む): 45007536

約数和(自身を除く): 25236928

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 8641, 17282, 34564, 69128, 95051, 112333, 138256, 190102, 224666, 380204, 449332, 760408, 898664, 1235663, 1520816, 1797328, 2471326, 4942652, 9885304, 19770608]

約数ペア:

[(1, 19770608), (2, 9885304), (4, 4942652), (8, 2471326), (11, 1797328), (13, 1520816), (16, 1235663), (22, 898664), (26, 760408), (44, 449332), (52, 380204), (88, 224666), (104, 190102), (143, 138256), (176, 112333), (208, 95051), (286, 69128), (572, 34564), (1144, 17282), (2288, 8641)]