21712516

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40813}}^1$

素因数の和:40843

約数の個数: 24

約数和(自身を含む): 45711680

約数和(自身を除く): 23999164

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40813, 81626, 163252, 285691, 571382, 775447, 1142764, 1550894, 3101788, 5428129, 10856258, 21712516]

約数ペア:

[(1, 21712516), (2, 10856258), (4, 5428129), (7, 3101788), (14, 1550894), (19, 1142764), (28, 775447), (38, 571382), (76, 285691), (133, 163252), (266, 81626), (532, 40813)]