18909976

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{433}}^1$

素因数の和:595

約数の個数: 32

約数和(自身を含む): 36560160

約数和(自身を除く): 17650184

約数列:

[1, 2, 4, 8, 53, 103, 106, 206, 212, 412, 424, 433, 824, 866, 1732, 3464, 5459, 10918, 21836, 22949, 43672, 44599, 45898, 89198, 91796, 178396, 183592, 356792, 2363747, 4727494, 9454988, 18909976]

約数ペア:

[(1, 18909976), (2, 9454988), (4, 4727494), (8, 2363747), (53, 356792), (103, 183592), (106, 178396), (206, 91796), (212, 89198), (412, 45898), (424, 44599), (433, 43672), (824, 22949), (866, 21836), (1732, 10918), (3464, 5459)]