21491460

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39799}}^1$

素因数の和:39817

約数の個数: 48

約数和(自身を含む): 66864000

約数和(自身を除く): 45372540

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, 39799, 79598, 119397, 159196, 198995, 238794, 358191, 397990, 477588, 596985, 716382, 795980, 1074573, 1193970, 1432764, 1790955, 2149146, 2387940, 3581910, 4298292, 5372865, 7163820, 10745730, 21491460]

約数ペア:

[(1, 21491460), (2, 10745730), (3, 7163820), (4, 5372865), (5, 4298292), (6, 3581910), (9, 2387940), (10, 2149146), (12, 1790955), (15, 1432764), (18, 1193970), (20, 1074573), (27, 795980), (30, 716382), (36, 596985), (45, 477588), (54, 397990), (60, 358191), (90, 238794), (108, 198995), (135, 159196), (180, 119397), (270, 79598), (540, 39799)]