21104853

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{433}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 35331072

約数和(自身を除く): 14226219

約数列:

[1, 3, 7, 11, 21, 33, 77, 211, 231, 433, 633, 1299, 1477, 2321, 3031, 4431, 4763, 6963, 9093, 14289, 16247, 33341, 48741, 91363, 100023, 274089, 639541, 1004993, 1918623, 3014979, 7034951, 21104853]

約数ペア:

[(1, 21104853), (3, 7034951), (7, 3014979), (11, 1918623), (21, 1004993), (33, 639541), (77, 274089), (211, 100023), (231, 91363), (433, 48741), (633, 33341), (1299, 16247), (1477, 14289), (2321, 9093), (3031, 6963), (4431, 4763)]