18877328

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:371

約数の個数: 40

約数和(自身を含む): 37785528

約数和(自身を除く): 18908200

約数列:

[1, 2, 4, 8, 16, 53, 106, 113, 197, 212, 226, 394, 424, 452, 788, 848, 904, 1576, 1808, 3152, 5989, 10441, 11978, 20882, 22261, 23956, 41764, 44522, 47912, 83528, 89044, 95824, 167056, 178088, 356176, 1179833, 2359666, 4719332, 9438664, 18877328]

約数ペア:

[(1, 18877328), (2, 9438664), (4, 4719332), (8, 2359666), (16, 1179833), (53, 356176), (106, 178088), (113, 167056), (197, 95824), (212, 89044), (226, 83528), (394, 47912), (424, 44522), (452, 41764), (788, 23956), (848, 22261), (904, 20882), (1576, 11978), (1808, 10441), (3152, 5989)]