20802471952

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{19405291}}^1$

素因数の和:19405366

約数の個数: 20

約数和(自身を含む): 40906355536

約数和(自身を除く): 20103883584

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 19405291, 38810582, 77621164, 155242328, 310484656, 1300154497, 2600308994, 5200617988, 10401235976, 20802471952]

約数ペア:

[(1, 20802471952), (2, 10401235976), (4, 5200617988), (8, 2600308994), (16, 1300154497), (67, 310484656), (134, 155242328), (268, 77621164), (536, 38810582), (1072, 19405291)]