21000900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{70003}}^1$

素因数の和:70020

約数の個数: 36

約数和(自身を含む): 60763472

約数和(自身を除く): 39762572

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300, 70003, 140006, 210009, 280012, 350015, 420018, 700030, 840036, 1050045, 1400060, 1750075, 2100090, 3500150, 4200180, 5250225, 7000300, 10500450, 21000900]

約数ペア:

[(1, 21000900), (2, 10500450), (3, 7000300), (4, 5250225), (5, 4200180), (6, 3500150), (10, 2100090), (12, 1750075), (15, 1400060), (20, 1050045), (25, 840036), (30, 700030), (50, 420018), (60, 350015), (75, 280012), (100, 210009), (150, 140006), (300, 70003)]