21851102

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:201

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 21694498

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 71, 89, 91, 133, 142, 178, 182, 247, 266, 494, 497, 623, 923, 994, 1157, 1246, 1349, 1691, 1729, 1846, 2314, 2698, 3382, 3458, 6319, 6461, 8099, 9443, 11837, 12638, 12922, 16198, 17537, 18886, 21983, 23674, 35074, 43966, 44233, 82147, 88466, 120061, 122759, 153881, 164294, 240122, 245518, 307762, 575029, 840427, 1150058, 1560793, 1680854, 3121586, 10925551, 21851102]

約数ペア:

[(1, 21851102), (2, 10925551), (7, 3121586), (13, 1680854), (14, 1560793), (19, 1150058), (26, 840427), (38, 575029), (71, 307762), (89, 245518), (91, 240122), (133, 164294), (142, 153881), (178, 122759), (182, 120061), (247, 88466), (266, 82147), (494, 44233), (497, 43966), (623, 35074), (923, 23674), (994, 21983), (1157, 18886), (1246, 17537), (1349, 16198), (1691, 12922), (1729, 12638), (1846, 11837), (2314, 9443), (2698, 8099), (3382, 6461), (3458, 6319)]