16978738

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{787}}^1$

素因数の和:886

約数の個数: 32

約数和(自身を含む): 30864384

約数和(自身を除く): 13885646

約数列:

[1, 2, 7, 14, 23, 46, 67, 134, 161, 322, 469, 787, 938, 1541, 1574, 3082, 5509, 10787, 11018, 18101, 21574, 36202, 52729, 105458, 126707, 253414, 369103, 738206, 1212767, 2425534, 8489369, 16978738]

約数ペア:

[(1, 16978738), (2, 8489369), (7, 2425534), (14, 1212767), (23, 738206), (46, 369103), (67, 253414), (134, 126707), (161, 105458), (322, 52729), (469, 36202), (787, 21574), (938, 18101), (1541, 11018), (1574, 10787), (3082, 5509)]