21398594

素因数分解:

$2^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{3259}}^1$

素因数の和:3342

約数の個数: 24

約数和(自身を含む): 37907280

約数和(自身を除く): 16508686

約数列:

[1, 2, 7, 14, 49, 67, 98, 134, 469, 938, 3259, 3283, 6518, 6566, 22813, 45626, 159691, 218353, 319382, 436706, 1528471, 3056942, 10699297, 21398594]

約数ペア:

[(1, 21398594), (2, 10699297), (7, 3056942), (14, 1528471), (49, 436706), (67, 319382), (98, 218353), (134, 159691), (469, 45626), (938, 22813), (3259, 6566), (3283, 6518)]