20989849692

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{241}}^1\times {\mathrm{6361}}^1$

素因数の和:6779

約数の個数: 96

約数和(自身を含む): 56558892544

約数和(自身を除く): 35569042852

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 163, 241, 326, 482, 489, 652, 723, 964, 978, 1141, 1446, 1687, 1956, 2282, 2892, 3374, 3423, 4564, 5061, 6361, 6748, 6846, 10122, 12722, 13692, 19083, 20244, 25444, 38166, 39283, 44527, 76332, 78566, 89054, 117849, 133581, 157132, 178108, 235698, 267162, 274981, 471396, 534324, 549962, 824943, 1036843, 1099924, 1533001, 1649886, 2073686, 3066002, 3110529, 3299772, 4147372, 4599003, 6132004, 6221058, 7257901, 9198006, 10731007, 12442116, 14515802, 18396012, 21462014, 21773703, 29031604, 32193021, 42924028, 43547406, 64386042, 87094812, 128772084, 249879163, 499758326, 749637489, 999516652, 1499274978, 1749154141, 2998549956, 3498308282, 5247462423, 6996616564, 10494924846, 20989849692]

約数ペア:

[(1, 20989849692), (2, 10494924846), (3, 6996616564), (4, 5247462423), (6, 3498308282), (7, 2998549956), (12, 1749154141), (14, 1499274978), (21, 999516652), (28, 749637489), (42, 499758326), (84, 249879163), (163, 128772084), (241, 87094812), (326, 64386042), (482, 43547406), (489, 42924028), (652, 32193021), (723, 29031604), (964, 21773703), (978, 21462014), (1141, 18396012), (1446, 14515802), (1687, 12442116), (1956, 10731007), (2282, 9198006), (2892, 7257901), (3374, 6221058), (3423, 6132004), (4564, 4599003), (5061, 4147372), (6361, 3299772), (6748, 3110529), (6846, 3066002), (10122, 2073686), (12722, 1649886), (13692, 1533001), (19083, 1099924), (20244, 1036843), (25444, 824943), (38166, 549962), (39283, 534324), (44527, 471396), (76332, 274981), (78566, 267162), (89054, 235698), (117849, 178108), (133581, 157132)]