20564368

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{353}}^1$

素因数の和:703

約数の個数: 40

約数和(自身を含む): 43720416

約数和(自身を除く): 23156048

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 331, 353, 662, 706, 1324, 1412, 2648, 2824, 3641, 3883, 5296, 5648, 7282, 7766, 14564, 15532, 29128, 31064, 58256, 62128, 116843, 233686, 467372, 934744, 1285273, 1869488, 2570546, 5141092, 10282184, 20564368]

約数ペア:

[(1, 20564368), (2, 10282184), (4, 5141092), (8, 2570546), (11, 1869488), (16, 1285273), (22, 934744), (44, 467372), (88, 233686), (176, 116843), (331, 62128), (353, 58256), (662, 31064), (706, 29128), (1324, 15532), (1412, 14564), (2648, 7766), (2824, 7282), (3641, 5648), (3883, 5296)]