21120896

素因数分解:

$2^7\times {\mathrm{157}}^1\times {\mathrm{1051}}^1$

素因数の和:1222

約数の個数: 32

約数和(自身を含む): 42385080

約数和(自身を除く): 21264184

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 157, 314, 628, 1051, 1256, 2102, 2512, 4204, 5024, 8408, 10048, 16816, 20096, 33632, 67264, 134528, 165007, 330014, 660028, 1320056, 2640112, 5280224, 10560448, 21120896]

約数ペア:

[(1, 21120896), (2, 10560448), (4, 5280224), (8, 2640112), (16, 1320056), (32, 660028), (64, 330014), (128, 165007), (157, 134528), (314, 67264), (628, 33632), (1051, 20096), (1256, 16816), (2102, 10048), (2512, 8408), (4204, 5024)]