16990617

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{439}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 27596800

約数和(自身を除く): 10606183

約数列:

[1, 3, 7, 19, 21, 57, 97, 133, 291, 399, 439, 679, 1317, 1843, 2037, 3073, 5529, 8341, 9219, 12901, 25023, 38703, 42583, 58387, 127749, 175161, 298081, 809077, 894243, 2427231, 5663539, 16990617]

約数ペア:

[(1, 16990617), (3, 5663539), (7, 2427231), (19, 894243), (21, 809077), (57, 298081), (97, 175161), (133, 127749), (291, 58387), (399, 42583), (439, 38703), (679, 25023), (1317, 12901), (1843, 9219), (2037, 8341), (3073, 5529)]