21141372

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{647}}^1$

素因数の和:1050

約数の個数: 48

約数和(自身を含む): 56609280

約数和(自身を除く): 35467908

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 389, 647, 778, 1167, 1294, 1556, 1941, 2334, 2588, 2723, 3882, 4529, 4668, 5446, 7764, 8169, 9058, 10892, 13587, 16338, 18116, 27174, 32676, 54348, 251683, 503366, 755049, 1006732, 1510098, 1761781, 3020196, 3523562, 5285343, 7047124, 10570686, 21141372]

約数ペア:

[(1, 21141372), (2, 10570686), (3, 7047124), (4, 5285343), (6, 3523562), (7, 3020196), (12, 1761781), (14, 1510098), (21, 1006732), (28, 755049), (42, 503366), (84, 251683), (389, 54348), (647, 32676), (778, 27174), (1167, 18116), (1294, 16338), (1556, 13587), (1941, 10892), (2334, 9058), (2588, 8169), (2723, 7764), (3882, 5446), (4529, 4668)]