21652120

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11047}}^1$

素因数の和:11072

約数の個数: 48

約数和(自身を含む): 56676240

約数和(自身を除く): 35024120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 11047, 22094, 44188, 55235, 77329, 88376, 110470, 154658, 220940, 309316, 386645, 441880, 541303, 618632, 773290, 1082606, 1546580, 2165212, 2706515, 3093160, 4330424, 5413030, 10826060, 21652120]

約数ペア:

[(1, 21652120), (2, 10826060), (4, 5413030), (5, 4330424), (7, 3093160), (8, 2706515), (10, 2165212), (14, 1546580), (20, 1082606), (28, 773290), (35, 618632), (40, 541303), (49, 441880), (56, 386645), (70, 309316), (98, 220940), (140, 154658), (196, 110470), (245, 88376), (280, 77329), (392, 55235), (490, 44188), (980, 22094), (1960, 11047)]