21221521696

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{1531}}^1$

素因数の和:1818

約数の個数: 96

約数和(自身を含む): 43918640640

約数和(自身を除く): 22697118944

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 89, 124, 157, 178, 248, 314, 356, 496, 628, 712, 992, 1256, 1424, 1531, 2512, 2759, 2848, 3062, 4867, 5024, 5518, 6124, 9734, 11036, 12248, 13973, 19468, 22072, 24496, 27946, 38936, 44144, 47461, 48992, 55892, 77872, 88288, 94922, 111784, 136259, 155744, 189844, 223568, 240367, 272518, 379688, 433163, 447136, 480734, 545036, 759376, 866326, 961468, 1090072, 1518752, 1732652, 1922936, 2180144, 3465304, 3845872, 4224029, 4360288, 6930608, 7451377, 7691744, 8448058, 13861216, 14902754, 16896116, 21392663, 29805508, 33792232, 42785326, 59611016, 67584464, 85570652, 119222032, 135168928, 171141304, 238444064, 342282608, 663172553, 684565216, 1326345106, 2652690212, 5305380424, 10610760848, 21221521696]

約数ペア:

[(1, 21221521696), (2, 10610760848), (4, 5305380424), (8, 2652690212), (16, 1326345106), (31, 684565216), (32, 663172553), (62, 342282608), (89, 238444064), (124, 171141304), (157, 135168928), (178, 119222032), (248, 85570652), (314, 67584464), (356, 59611016), (496, 42785326), (628, 33792232), (712, 29805508), (992, 21392663), (1256, 16896116), (1424, 14902754), (1531, 13861216), (2512, 8448058), (2759, 7691744), (2848, 7451377), (3062, 6930608), (4867, 4360288), (5024, 4224029), (5518, 3845872), (6124, 3465304), (9734, 2180144), (11036, 1922936), (12248, 1732652), (13973, 1518752), (19468, 1090072), (22072, 961468), (24496, 866326), (27946, 759376), (38936, 545036), (44144, 480734), (47461, 447136), (48992, 433163), (55892, 379688), (77872, 272518), (88288, 240367), (94922, 223568), (111784, 189844), (136259, 155744)]