21059910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1109}}^1$

素因数の和:1333

約数の個数: 48

約数和(自身を含む): 55064880

約数和(自身を除く): 34004970

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 211, 422, 633, 1055, 1109, 1266, 1899, 2110, 2218, 3165, 3327, 3798, 5545, 6330, 6654, 9495, 9981, 11090, 16635, 18990, 19962, 33270, 49905, 99810, 233999, 467998, 701997, 1169995, 1403994, 2105991, 2339990, 3509985, 4211982, 7019970, 10529955, 21059910]

約数ペア:

[(1, 21059910), (2, 10529955), (3, 7019970), (5, 4211982), (6, 3509985), (9, 2339990), (10, 2105991), (15, 1403994), (18, 1169995), (30, 701997), (45, 467998), (90, 233999), (211, 99810), (422, 49905), (633, 33270), (1055, 19962), (1109, 18990), (1266, 16635), (1899, 11090), (2110, 9981), (2218, 9495), (3165, 6654), (3327, 6330), (3798, 5545)]