21890394

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{64007}}^1$

素因数の和:64034

約数の個数: 24

約数和(自身を含む): 49926240

約数和(自身を除く): 28035846

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 64007, 128014, 192021, 384042, 576063, 1152126, 1216133, 2432266, 3648399, 7296798, 10945197, 21890394]

約数ペア:

[(1, 21890394), (2, 10945197), (3, 7296798), (6, 3648399), (9, 2432266), (18, 1216133), (19, 1152126), (38, 576063), (57, 384042), (114, 192021), (171, 128014), (342, 64007)]