21406620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7591}}^1$

素因数の和:7650

約数の個数: 48

約数和(自身を含む): 61221888

約数和(自身を除く): 39815268

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7591, 15182, 22773, 30364, 37955, 45546, 75910, 91092, 113865, 151820, 227730, 356777, 455460, 713554, 1070331, 1427108, 1783885, 2140662, 3567770, 4281324, 5351655, 7135540, 10703310, 21406620]

約数ペア:

[(1, 21406620), (2, 10703310), (3, 7135540), (4, 5351655), (5, 4281324), (6, 3567770), (10, 2140662), (12, 1783885), (15, 1427108), (20, 1070331), (30, 713554), (47, 455460), (60, 356777), (94, 227730), (141, 151820), (188, 113865), (235, 91092), (282, 75910), (470, 45546), (564, 37955), (705, 30364), (940, 22773), (1410, 15182), (2820, 7591)]