21767820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21341}}^1$

素因数の和:21370

約数の個数: 48

約数和(自身を含む): 64538208

約数和(自身を除く): 42770388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21341, 42682, 64023, 85364, 106705, 128046, 213410, 256092, 320115, 362797, 426820, 640230, 725594, 1088391, 1280460, 1451188, 1813985, 2176782, 3627970, 4353564, 5441955, 7255940, 10883910, 21767820]

約数ペア:

[(1, 21767820), (2, 10883910), (3, 7255940), (4, 5441955), (5, 4353564), (6, 3627970), (10, 2176782), (12, 1813985), (15, 1451188), (17, 1280460), (20, 1088391), (30, 725594), (34, 640230), (51, 426820), (60, 362797), (68, 320115), (85, 256092), (102, 213410), (170, 128046), (204, 106705), (255, 85364), (340, 64023), (510, 42682), (1020, 21341)]