21785968

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1117}}^1$

素因数の和:1201

約数の個数: 40

約数和(自身を含む): 44916768

約数和(自身を除く): 23130800

約数列:

[1, 2, 4, 8, 16, 23, 46, 53, 92, 106, 184, 212, 368, 424, 848, 1117, 1219, 2234, 2438, 4468, 4876, 8936, 9752, 17872, 19504, 25691, 51382, 59201, 102764, 118402, 205528, 236804, 411056, 473608, 947216, 1361623, 2723246, 5446492, 10892984, 21785968]

約数ペア:

[(1, 21785968), (2, 10892984), (4, 5446492), (8, 2723246), (16, 1361623), (23, 947216), (46, 473608), (53, 411056), (92, 236804), (106, 205528), (184, 118402), (212, 102764), (368, 59201), (424, 51382), (848, 25691), (1117, 19504), (1219, 17872), (2234, 9752), (2438, 8936), (4468, 4876)]