19681430

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67867}}^1$

素因数の和:67903

約数の個数: 16

約数和(自身を含む): 36648720

約数和(自身を除く): 16967290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 67867, 135734, 339335, 678670, 1968143, 3936286, 9840715, 19681430]

約数ペア:

[(1, 19681430), (2, 9840715), (5, 3936286), (10, 1968143), (29, 678670), (58, 339335), (145, 135734), (290, 67867)]