20739136

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:443

約数の個数: 56

約数和(自身を含む): 45537120

約数和(自身を除く): 24797984

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 89, 176, 178, 331, 352, 356, 662, 704, 712, 979, 1324, 1424, 1958, 2648, 2848, 3641, 3916, 5296, 5696, 7282, 7832, 10592, 14564, 15664, 21184, 29128, 29459, 31328, 58256, 58918, 62656, 116512, 117836, 233024, 235672, 324049, 471344, 648098, 942688, 1296196, 1885376, 2592392, 5184784, 10369568, 20739136]

約数ペア:

[(1, 20739136), (2, 10369568), (4, 5184784), (8, 2592392), (11, 1885376), (16, 1296196), (22, 942688), (32, 648098), (44, 471344), (64, 324049), (88, 235672), (89, 233024), (176, 117836), (178, 116512), (331, 62656), (352, 58918), (356, 58256), (662, 31328), (704, 29459), (712, 29128), (979, 21184), (1324, 15664), (1424, 14564), (1958, 10592), (2648, 7832), (2848, 7282), (3641, 5696), (3916, 5296)]