21174285

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{709}}^1$

素因数の和:909

約数の個数: 32

約数和(自身を含む): 37215360

約数和(自身を除く): 16041075

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 181, 543, 709, 905, 1991, 2127, 2715, 3545, 5973, 7799, 9955, 10635, 23397, 29865, 38995, 116985, 128329, 384987, 641645, 1411619, 1924935, 4234857, 7058095, 21174285]

約数ペア:

[(1, 21174285), (3, 7058095), (5, 4234857), (11, 1924935), (15, 1411619), (33, 641645), (55, 384987), (165, 128329), (181, 116985), (543, 38995), (709, 29865), (905, 23397), (1991, 10635), (2127, 9955), (2715, 7799), (3545, 5973)]