21000724724

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3347}}^1\times {\mathrm{9743}}^1$

素因数の和:13124

約数の個数: 48

約数和(自身を含む): 43845193728

約数和(自身を除く): 22844469004

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 3347, 6694, 9743, 13388, 19486, 23429, 38972, 46858, 68201, 76981, 93716, 136402, 153962, 224089, 272804, 307924, 448178, 538867, 896356, 1077734, 1568623, 2155468, 3137246, 6274492, 32609821, 65219642, 130439284, 228268747, 456537494, 750025883, 913074988, 1500051766, 3000103532, 5250181181, 10500362362, 21000724724]

約数ペア:

[(1, 21000724724), (2, 10500362362), (4, 5250181181), (7, 3000103532), (14, 1500051766), (23, 913074988), (28, 750025883), (46, 456537494), (92, 228268747), (161, 130439284), (322, 65219642), (644, 32609821), (3347, 6274492), (6694, 3137246), (9743, 2155468), (13388, 1568623), (19486, 1077734), (23429, 896356), (38972, 538867), (46858, 448178), (68201, 307924), (76981, 272804), (93716, 224089), (136402, 153962)]