21675735

素因数分解:

$3^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{523}}^1$

素因数の和:844

約数の個数: 32

約数和(自身を含む): 38734080

約数和(自身を除く): 17058345

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 307, 523, 921, 1535, 1569, 2615, 2763, 4605, 4707, 7845, 8289, 13815, 14121, 23535, 41445, 70605, 160561, 481683, 802805, 1445049, 2408415, 4335147, 7225245, 21675735]

約数ペア:

[(1, 21675735), (3, 7225245), (5, 4335147), (9, 2408415), (15, 1445049), (27, 802805), (45, 481683), (135, 160561), (307, 70605), (523, 41445), (921, 23535), (1535, 14121), (1569, 13815), (2615, 8289), (2763, 7845), (4605, 4707)]