20556996836

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{683}}^1\times {\mathrm{442619}}^1$

素因数の和:443323

約数の個数: 24

約数和(自身を含む): 38146762080

約数和(自身を除く): 17589765244

約数列:

[1, 2, 4, 17, 34, 68, 683, 1366, 2732, 11611, 23222, 46444, 442619, 885238, 1770476, 7524523, 15049046, 30098092, 302308777, 604617554, 1209235108, 5139249209, 10278498418, 20556996836]

約数ペア:

[(1, 20556996836), (2, 10278498418), (4, 5139249209), (17, 1209235108), (34, 604617554), (68, 302308777), (683, 30098092), (1366, 15049046), (2732, 7524523), (11611, 1770476), (23222, 885238), (46444, 442619)]