20217204

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:254

約数の個数: 108

約数和(自身を含む): 60646404

約数和(自身を除く): 40429200

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 73, 84, 98, 126, 146, 147, 157, 196, 219, 252, 292, 294, 314, 438, 441, 471, 511, 588, 628, 657, 876, 882, 942, 1022, 1099, 1314, 1413, 1533, 1764, 1884, 2044, 2198, 2628, 2826, 3066, 3297, 3577, 4396, 4599, 5652, 6132, 6594, 7154, 7693, 9198, 9891, 10731, 11461, 13188, 14308, 15386, 18396, 19782, 21462, 22922, 23079, 30772, 32193, 34383, 39564, 42924, 45844, 46158, 64386, 68766, 69237, 80227, 92316, 103149, 128772, 137532, 138474, 160454, 206298, 240681, 276948, 320908, 412596, 481362, 561589, 722043, 962724, 1123178, 1444086, 1684767, 2246356, 2888172, 3369534, 5054301, 6739068, 10108602, 20217204]

約数ペア:

[(1, 20217204), (2, 10108602), (3, 6739068), (4, 5054301), (6, 3369534), (7, 2888172), (9, 2246356), (12, 1684767), (14, 1444086), (18, 1123178), (21, 962724), (28, 722043), (36, 561589), (42, 481362), (49, 412596), (63, 320908), (73, 276948), (84, 240681), (98, 206298), (126, 160454), (146, 138474), (147, 137532), (157, 128772), (196, 103149), (219, 92316), (252, 80227), (292, 69237), (294, 68766), (314, 64386), (438, 46158), (441, 45844), (471, 42924), (511, 39564), (588, 34383), (628, 32193), (657, 30772), (876, 23079), (882, 22922), (942, 21462), (1022, 19782), (1099, 18396), (1314, 15386), (1413, 14308), (1533, 13188), (1764, 11461), (1884, 10731), (2044, 9891), (2198, 9198), (2628, 7693), (2826, 7154), (3066, 6594), (3297, 6132), (3577, 5652), (4396, 4599)]