21299910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{17317}}^1$

素因数の和:17368

約数の個数: 32

約数和(自身を含む): 52369632

約数和(自身を除く): 31069722

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 123, 205, 246, 410, 615, 1230, 17317, 34634, 51951, 86585, 103902, 173170, 259755, 519510, 709997, 1419994, 2129991, 3549985, 4259982, 7099970, 10649955, 21299910]

約数ペア:

[(1, 21299910), (2, 10649955), (3, 7099970), (5, 4259982), (6, 3549985), (10, 2129991), (15, 1419994), (30, 709997), (41, 519510), (82, 259755), (123, 173170), (205, 103902), (246, 86585), (410, 51951), (615, 34634), (1230, 17317)]