21959460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{121997}}^1$

素因数の和:122012

約数の個数: 36

約数和(自身を含む): 66610908

約数和(自身を除く): 44651448

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 121997, 243994, 365991, 487988, 609985, 731982, 1097973, 1219970, 1463964, 1829955, 2195946, 2439940, 3659910, 4391892, 5489865, 7319820, 10979730, 21959460]

約数ペア:

[(1, 21959460), (2, 10979730), (3, 7319820), (4, 5489865), (5, 4391892), (6, 3659910), (9, 2439940), (10, 2195946), (12, 1829955), (15, 1463964), (18, 1219970), (20, 1097973), (30, 731982), (36, 609985), (45, 487988), (60, 365991), (90, 243994), (180, 121997)]