20161494544

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20657269}}^1$

素因数の和:20657338

約数の個数: 20

約数和(自身を含む): 39703272940

約数和(自身を除く): 19541778396

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20657269, 41314538, 82629076, 165258152, 330516304, 1260093409, 2520186818, 5040373636, 10080747272, 20161494544]

約数ペア:

[(1, 20161494544), (2, 10080747272), (4, 5040373636), (8, 2520186818), (16, 1260093409), (61, 330516304), (122, 165258152), (244, 82629076), (488, 41314538), (976, 20657269)]