21381000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{7127}}^1$

素因数の和:7151

約数の個数: 64

約数和(自身を含む): 66718080

約数和(自身を除く): 45337080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 750, 1000, 1500, 3000, 7127, 14254, 21381, 28508, 35635, 42762, 57016, 71270, 85524, 106905, 142540, 171048, 178175, 213810, 285080, 356350, 427620, 534525, 712700, 855240, 890875, 1069050, 1425400, 1781750, 2138100, 2672625, 3563500, 4276200, 5345250, 7127000, 10690500, 21381000]

約数ペア:

[(1, 21381000), (2, 10690500), (3, 7127000), (4, 5345250), (5, 4276200), (6, 3563500), (8, 2672625), (10, 2138100), (12, 1781750), (15, 1425400), (20, 1069050), (24, 890875), (25, 855240), (30, 712700), (40, 534525), (50, 427620), (60, 356350), (75, 285080), (100, 213810), (120, 178175), (125, 171048), (150, 142540), (200, 106905), (250, 85524), (300, 71270), (375, 57016), (500, 42762), (600, 35635), (750, 28508), (1000, 21381), (1500, 14254), (3000, 7127)]