21898005

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 14389995

約数列:

[1, 3, 5, 15, 47, 89, 141, 235, 267, 349, 445, 705, 1047, 1335, 1745, 4183, 5235, 12549, 16403, 20915, 31061, 49209, 62745, 82015, 93183, 155305, 246045, 465915, 1459867, 4379601, 7299335, 21898005]

約数ペア:

[(1, 21898005), (3, 7299335), (5, 4379601), (15, 1459867), (47, 465915), (89, 246045), (141, 155305), (235, 93183), (267, 82015), (349, 62745), (445, 49209), (705, 31061), (1047, 20915), (1335, 16403), (1745, 12549), (4183, 5235)]