21868252

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 45948672

約数和(自身を除く): 24080420

約数列:

[1, 2, 4, 7, 14, 28, 41, 43, 82, 86, 164, 172, 287, 301, 443, 574, 602, 886, 1148, 1204, 1763, 1772, 3101, 3526, 6202, 7052, 12341, 12404, 18163, 19049, 24682, 36326, 38098, 49364, 72652, 76196, 127141, 133343, 254282, 266686, 508564, 533372, 781009, 1562018, 3124036, 5467063, 10934126, 21868252]

約数ペア:

[(1, 21868252), (2, 10934126), (4, 5467063), (7, 3124036), (14, 1562018), (28, 781009), (41, 533372), (43, 508564), (82, 266686), (86, 254282), (164, 133343), (172, 127141), (287, 76196), (301, 72652), (443, 49364), (574, 38098), (602, 36326), (886, 24682), (1148, 19049), (1204, 18163), (1763, 12404), (1772, 12341), (3101, 7052), (3526, 6202)]