21107144

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{743}}^1$

素因数の和:869

約数の個数: 32

約数和(自身を含む): 40979520

約数和(自身を除く): 19872376

約数列:

[1, 2, 4, 8, 53, 67, 106, 134, 212, 268, 424, 536, 743, 1486, 2972, 3551, 5944, 7102, 14204, 28408, 39379, 49781, 78758, 99562, 157516, 199124, 315032, 398248, 2638393, 5276786, 10553572, 21107144]

約数ペア:

[(1, 21107144), (2, 10553572), (4, 5276786), (8, 2638393), (53, 398248), (67, 315032), (106, 199124), (134, 157516), (212, 99562), (268, 78758), (424, 49781), (536, 39379), (743, 28408), (1486, 14204), (2972, 7102), (3551, 5944)]