21789992

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{9049}}^1$

素因数の和:9105

約数の個数: 32

約数和(自身を含む): 47784000

約数和(自身を除く): 25994008

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 9049, 18098, 36196, 63343, 72392, 126686, 253372, 389107, 506744, 778214, 1556428, 2723749, 3112856, 5447498, 10894996, 21789992]

約数ペア:

[(1, 21789992), (2, 10894996), (4, 5447498), (7, 3112856), (8, 2723749), (14, 1556428), (28, 778214), (43, 506744), (56, 389107), (86, 253372), (172, 126686), (301, 72392), (344, 63343), (602, 36196), (1204, 18098), (2408, 9049)]