21000478600

素因数分解:

$2^3\times 5^2\times {\mathrm{105002393}}^1$

素因数の和:105002409

約数の個数: 24

約数和(自身を含む): 48826113210

約数和(自身を除く): 27825634610

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 105002393, 210004786, 420009572, 525011965, 840019144, 1050023930, 2100047860, 2625059825, 4200095720, 5250119650, 10500239300, 21000478600]

約数ペア:

[(1, 21000478600), (2, 10500239300), (4, 5250119650), (5, 4200095720), (8, 2625059825), (10, 2100047860), (20, 1050023930), (25, 840019144), (40, 525011965), (50, 420009572), (100, 210004786), (200, 105002393)]