21201200

素因数分解:

$2^4\times 5^2\times {\mathrm{53003}}^1$

素因数の和:53021

約数の個数: 30

約数和(自身を含む): 50936844

約数和(自身を除く): 29735644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53003, 106006, 212012, 265015, 424024, 530030, 848048, 1060060, 1325075, 2120120, 2650150, 4240240, 5300300, 10600600, 21201200]

約数ペア:

[(1, 21201200), (2, 10600600), (4, 5300300), (5, 4240240), (8, 2650150), (10, 2120120), (16, 1325075), (20, 1060060), (25, 848048), (40, 530030), (50, 424024), (80, 265015), (100, 212012), (200, 106006), (400, 53003)]