21298535

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1973}}^1$

素因数の和:2122

約数の個数: 16

約数和(自身を含む): 27288576

約数和(自身を除く): 5990041

約数列:

[1, 5, 17, 85, 127, 635, 1973, 2159, 9865, 10795, 33541, 167705, 250571, 1252855, 4259707, 21298535]

約数ペア:

[(1, 21298535), (5, 4259707), (17, 1252855), (85, 250571), (127, 167705), (635, 33541), (1973, 10795), (2159, 9865)]