16978948

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{631}}^1$

素因数の和:704

約数の個数: 36

約数和(自身を含む): 35144256

約数和(自身を除く): 18165308

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 631, 868, 961, 1262, 1922, 2524, 3844, 4417, 6727, 8834, 13454, 17668, 19561, 26908, 39122, 78244, 136927, 273854, 547708, 606391, 1212782, 2425564, 4244737, 8489474, 16978948]

約数ペア:

[(1, 16978948), (2, 8489474), (4, 4244737), (7, 2425564), (14, 1212782), (28, 606391), (31, 547708), (62, 273854), (124, 136927), (217, 78244), (434, 39122), (631, 26908), (868, 19561), (961, 17668), (1262, 13454), (1922, 8834), (2524, 6727), (3844, 4417)]