21352140

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39541}}^1$

素因数の和:39559

約数の個数: 48

約数和(自身を含む): 66430560

約数和(自身を除く): 45078420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39541, 79082, 118623, 158164, 197705, 237246, 355869, 395410, 474492, 593115, 711738, 790820, 1067607, 1186230, 1423476, 1779345, 2135214, 2372460, 3558690, 4270428, 5338035, 7117380, 10676070, 21352140]

約数ペア:

[(1, 21352140), (2, 10676070), (3, 7117380), (4, 5338035), (5, 4270428), (6, 3558690), (9, 2372460), (10, 2135214), (12, 1779345), (15, 1423476), (18, 1186230), (20, 1067607), (27, 790820), (30, 711738), (36, 593115), (45, 474492), (54, 395410), (60, 355869), (90, 237246), (108, 197705), (135, 158164), (180, 118623), (270, 79082), (540, 39541)]