21022965

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27481}}^1$

素因数の和:27509

約数の個数: 24

約数和(自身を含む): 38584728

約数和(自身を除く): 17561763

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 27481, 82443, 137405, 247329, 412215, 467177, 1236645, 1401531, 2335885, 4204593, 7007655, 21022965]

約数ペア:

[(1, 21022965), (3, 7007655), (5, 4204593), (9, 2335885), (15, 1401531), (17, 1236645), (45, 467177), (51, 412215), (85, 247329), (153, 137405), (255, 82443), (765, 27481)]