19508812

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{941}}^1$

素因数の和:1089

約数の個数: 24

約数和(自身を含む): 35132832

約数和(自身を除く): 15624020

約数列:

[1, 2, 4, 71, 73, 142, 146, 284, 292, 941, 1882, 3764, 5183, 10366, 20732, 66811, 68693, 133622, 137386, 267244, 274772, 4877203, 9754406, 19508812]

約数ペア:

[(1, 19508812), (2, 9754406), (4, 4877203), (71, 274772), (73, 267244), (142, 137386), (146, 133622), (284, 68693), (292, 66811), (941, 20732), (1882, 10366), (3764, 5183)]