21208316

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{7607}}^1$

素因数の和:7669

約数の個数: 24

約数和(自身を含む): 40261536

約数和(自身を除く): 19053220

約数列:

[1, 2, 4, 17, 34, 41, 68, 82, 164, 697, 1394, 2788, 7607, 15214, 30428, 129319, 258638, 311887, 517276, 623774, 1247548, 5302079, 10604158, 21208316]

約数ペア:

[(1, 21208316), (2, 10604158), (4, 5302079), (17, 1247548), (34, 623774), (41, 517276), (68, 311887), (82, 258638), (164, 129319), (697, 30428), (1394, 15214), (2788, 7607)]