21175381744

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{42499}}^1$

素因数の和:42686

約数の個数: 80

約数和(自身を含む): 47430000000

約数和(自身を除く): 26254618256

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 149, 152, 176, 209, 298, 304, 418, 596, 836, 1192, 1639, 1672, 2384, 2831, 3278, 3344, 5662, 6556, 11324, 13112, 22648, 26224, 31141, 42499, 45296, 62282, 84998, 124564, 169996, 249128, 339992, 467489, 498256, 679984, 807481, 934978, 1614962, 1869956, 3229924, 3739912, 6332351, 6459848, 7479824, 8882291, 12664702, 12919696, 17764582, 25329404, 35529164, 50658808, 69655861, 71058328, 101317616, 120314669, 139311722, 142116656, 240629338, 278623444, 481258676, 557246888, 962517352, 1114493776, 1323461359, 1925034704, 2646922718, 5293845436, 10587690872, 21175381744]

約数ペア:

[(1, 21175381744), (2, 10587690872), (4, 5293845436), (8, 2646922718), (11, 1925034704), (16, 1323461359), (19, 1114493776), (22, 962517352), (38, 557246888), (44, 481258676), (76, 278623444), (88, 240629338), (149, 142116656), (152, 139311722), (176, 120314669), (209, 101317616), (298, 71058328), (304, 69655861), (418, 50658808), (596, 35529164), (836, 25329404), (1192, 17764582), (1639, 12919696), (1672, 12664702), (2384, 8882291), (2831, 7479824), (3278, 6459848), (3344, 6332351), (5662, 3739912), (6556, 3229924), (11324, 1869956), (13112, 1614962), (22648, 934978), (26224, 807481), (31141, 679984), (42499, 498256), (45296, 467489), (62282, 339992), (84998, 249128), (124564, 169996)]