211872195

素因数分解:

$3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{283}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 374280192

約数和(自身を除く): 162407997

約数列:

[1, 3, 5, 9, 15, 45, 127, 131, 283, 381, 393, 635, 655, 849, 1143, 1179, 1415, 1905, 1965, 2547, 4245, 5715, 5895, 12735, 16637, 35941, 37073, 49911, 83185, 107823, 111219, 149733, 179705, 185365, 249555, 323469, 333657, 539115, 556095, 748665, 1617345, 1668285, 4708271, 14124813, 23541355, 42374439, 70624065, 211872195]

約数ペア:

[(1, 211872195), (3, 70624065), (5, 42374439), (9, 23541355), (15, 14124813), (45, 4708271), (127, 1668285), (131, 1617345), (283, 748665), (381, 556095), (393, 539115), (635, 333657), (655, 323469), (849, 249555), (1143, 185365), (1179, 179705), (1415, 149733), (1905, 111219), (1965, 107823), (2547, 83185), (4245, 49911), (5715, 37073), (5895, 35941), (12735, 16637)]