18521790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{991}}^1$

素因数の和:1097

約数の個数: 64

約数和(自身を含む): 51425280

約数和(自身を除く): 32903490

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 89, 105, 178, 210, 267, 445, 534, 623, 890, 991, 1246, 1335, 1869, 1982, 2670, 2973, 3115, 3738, 4955, 5946, 6230, 6937, 9345, 9910, 13874, 14865, 18690, 20811, 29730, 34685, 41622, 69370, 88199, 104055, 176398, 208110, 264597, 440995, 529194, 617393, 881990, 1234786, 1322985, 1852179, 2645970, 3086965, 3704358, 6173930, 9260895, 18521790]

約数ペア:

[(1, 18521790), (2, 9260895), (3, 6173930), (5, 3704358), (6, 3086965), (7, 2645970), (10, 1852179), (14, 1322985), (15, 1234786), (21, 881990), (30, 617393), (35, 529194), (42, 440995), (70, 264597), (89, 208110), (105, 176398), (178, 104055), (210, 88199), (267, 69370), (445, 41622), (534, 34685), (623, 29730), (890, 20811), (991, 18690), (1246, 14865), (1335, 13874), (1869, 9910), (1982, 9345), (2670, 6937), (2973, 6230), (3115, 5946), (3738, 4955)]