21144345

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{293}}^1$

素因数の和:601

約数の個数: 32

約数和(自身を含む): 36070272

約数和(自身を除く): 14925927

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 283, 293, 849, 879, 1415, 1465, 4245, 4395, 4811, 4981, 14433, 14943, 24055, 24905, 72165, 74715, 82919, 248757, 414595, 1243785, 1409623, 4228869, 7048115, 21144345]

約数ペア:

[(1, 21144345), (3, 7048115), (5, 4228869), (15, 1409623), (17, 1243785), (51, 414595), (85, 248757), (255, 82919), (283, 74715), (293, 72165), (849, 24905), (879, 24055), (1415, 14943), (1465, 14433), (4245, 4981), (4395, 4811)]