20804535759

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{21313}}^1$

素因数の和:21436

約数の個数: 64

約数和(自身を含む): 34571649024

約数和(自身を除く): 13767113265

約数列:

[1, 3, 7, 21, 23, 43, 47, 69, 129, 141, 161, 301, 329, 483, 903, 987, 989, 1081, 2021, 2967, 3243, 6063, 6923, 7567, 14147, 20769, 21313, 22701, 42441, 46483, 63939, 139449, 149191, 325381, 447573, 490199, 916459, 976143, 1001711, 1470597, 2749377, 3005133, 3431393, 6415213, 7011977, 10294179, 19245639, 21035931, 21078557, 23039353, 43073573, 63235671, 69118059, 129220719, 147549899, 161275471, 301515011, 442649697, 483826413, 904545033, 990692179, 2972076537, 6934845253, 20804535759]

約数ペア:

[(1, 20804535759), (3, 6934845253), (7, 2972076537), (21, 990692179), (23, 904545033), (43, 483826413), (47, 442649697), (69, 301515011), (129, 161275471), (141, 147549899), (161, 129220719), (301, 69118059), (329, 63235671), (483, 43073573), (903, 23039353), (987, 21078557), (989, 21035931), (1081, 19245639), (2021, 10294179), (2967, 7011977), (3243, 6415213), (6063, 3431393), (6923, 3005133), (7567, 2749377), (14147, 1470597), (20769, 1001711), (21313, 976143), (22701, 916459), (42441, 490199), (46483, 447573), (63939, 325381), (139449, 149191)]