20666224

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{433}}^1$

素因数の和:617

約数の個数: 40

約数和(自身を含む): 42514640

約数和(自身を除く): 21848416

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 157, 304, 314, 433, 628, 866, 1256, 1732, 2512, 2983, 3464, 5966, 6928, 8227, 11932, 16454, 23864, 32908, 47728, 65816, 67981, 131632, 135962, 271924, 543848, 1087696, 1291639, 2583278, 5166556, 10333112, 20666224]

約数ペア:

[(1, 20666224), (2, 10333112), (4, 5166556), (8, 2583278), (16, 1291639), (19, 1087696), (38, 543848), (76, 271924), (152, 135962), (157, 131632), (304, 67981), (314, 65816), (433, 47728), (628, 32908), (866, 23864), (1256, 16454), (1732, 11932), (2512, 8227), (2983, 6928), (3464, 5966)]