21730019255

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{241}}^1\times {\mathrm{331}}^1$

素因数の和:808

約数の個数: 64

約数和(自身を含む): 30882948096

約数和(自身を除く): 9152928841

約数列:

[1, 5, 7, 35, 43, 181, 215, 241, 301, 331, 905, 1205, 1267, 1505, 1655, 1687, 2317, 6335, 7783, 8435, 10363, 11585, 14233, 38915, 43621, 51815, 54481, 59911, 71165, 72541, 79771, 99631, 218105, 272405, 299555, 305347, 362705, 398855, 419377, 498155, 558397, 1526735, 1875703, 2096885, 2576173, 2791985, 3430153, 9378515, 12880865, 13129921, 14438551, 17150765, 18033211, 24011071, 65649605, 72192755, 90166055, 101069857, 120055355, 505349285, 620857693, 3104288465, 4346003851, 21730019255]

約数ペア:

[(1, 21730019255), (5, 4346003851), (7, 3104288465), (35, 620857693), (43, 505349285), (181, 120055355), (215, 101069857), (241, 90166055), (301, 72192755), (331, 65649605), (905, 24011071), (1205, 18033211), (1267, 17150765), (1505, 14438551), (1655, 13129921), (1687, 12880865), (2317, 9378515), (6335, 3430153), (7783, 2791985), (8435, 2576173), (10363, 2096885), (11585, 1875703), (14233, 1526735), (38915, 558397), (43621, 498155), (51815, 419377), (54481, 398855), (59911, 362705), (71165, 305347), (72541, 299555), (79771, 272405), (99631, 218105)]